[Dropdown] Bugfix - Render options and placeholder inline (#2054)

## Summary: ##
The dropdown widget was not rendering content properly. Punctuation and other non-alphanumeric characters were causing the content to break to their own lines, even without TeX markup. Removing the `inline` setting for the `<Renderer>` usages resolved this.

Issue: LEMS-2741

## Test plan:
1. Open Storybook
1. Navigate to the Editor Demo page
1. Add a Dropdown widget
1. Type in TeX content for one of the option
1. Add another option with regular text (all alphanumeric characters)
1. Add another option with punctuation or other non-alphanumeric characters ($%^<>,.:)
1. Viewing the dropdown options in the preview section should show all of the options on their own lines (single line for each)
1. Repeat these steps for the Placeholder portion of the widget

Author: mark-fitzgerald

Reviewers: jeremywiebe

Required Reviewers:

Approved By: jeremywiebe

Checks: ✅ Publish npm snapshot (ubuntu-latest, 20.x), ✅ Cypress (ubuntu-latest, 20.x), ✅ Lint, Typecheck, Format, and Test (ubuntu-latest, 20.x), ✅ Check for .changeset entries for all changed files (ubuntu-latest, 20.x), ✅ Check builds for changes in size (ubuntu-latest, 20.x), ✅ Publish npm snapshot (ubuntu-latest, 20.x), ✅ Lint, Typecheck, Format, and Test (ubuntu-latest, 20.x), ✅ Cypress (ubuntu-latest, 20.x), ✅ Check builds for changes in size (ubuntu-latest, 20.x), ✅ Publish Storybook to Chromatic (ubuntu-latest, 20.x), ✅ Check for .changeset entries for all changed files (ubuntu-latest, 20.x)

Pull Request URL: #2054

.changeset/hungry-taxis-clap.md

@@ -0,0 +1,5 @@
+---
+"@khanacademy/perseus": patch
+---
+
+[Dropdown] Bugfix - Render options and placeholder inline

packages/perseus/src/__tests__/__snapshots__/renderer.test.tsx.snap

@@ -383,10 +383,14 @@ exports[`renderer snapshots correct answer: correct answer 1`] = `
                     class="perseus-renderer perseus-renderer-responsive"
                   >
                     <div
-                      class=""
+                      class="paragraph"
                       data-perseus-paragraph-index="0"
                     >
-                      less than or equal to
+                      <div
+                        class="paragraph"
+                      >
+                        less than or equal to
+                      </div>
                     </div>
                   </div>
                 </span>
@@ -471,10 +475,14 @@ exports[`renderer snapshots incorrect answer: incorrect answer 1`] = `
                     class="perseus-renderer perseus-renderer-responsive"
                   >
                     <div
-                      class=""
+                      class="paragraph"
                       data-perseus-paragraph-index="0"
                     >
-                      greater than or equal to
+                      <div
+                        class="paragraph"
+                      >
+                        greater than or equal to
+                      </div>
                     </div>
                   </div>
                 </span>
@@ -559,16 +567,14 @@ exports[`renderer snapshots initial render: initial render 1`] = `
                     class="perseus-renderer perseus-renderer-responsive"
                   >
                     <div
-                      class=""
+                      class="paragraph"
                       data-perseus-paragraph-index="0"
                     >
-                      greater
-                    </div>
-                    <div
-                      class=""
-                      data-perseus-paragraph-index="1"
-                    >
-                      /less than or equal to
+                      <div
+                        class="paragraph"
+                      >
+                        greater/less than or equal to
+                      </div>
                     </div>
                   </div>
                 </span>

packages/perseus/src/widgets/dropdown/__snapshots__/dropdown.test.ts.snap

@@ -50,16 +50,14 @@ exports[`Dropdown widget should snapshot when opened: dropdown open 1`] = `
                     class="perseus-renderer perseus-renderer-responsive"
                   >
                     <div
-                      class=""
+                      class="paragraph"
                       data-perseus-paragraph-index="0"
                     >
-                      greater
-                    </div>
-                    <div
-                      class=""
-                      data-perseus-paragraph-index="1"
-                    >
-                      /less than or equal to
+                      <div
+                        class="paragraph"
+                      >
+                        greater/less than or equal to
+                      </div>
                     </div>
                   </div>
                 </span>
@@ -138,16 +136,14 @@ exports[`Dropdown widget should snapshot: initial render 1`] = `
                     class="perseus-renderer perseus-renderer-responsive"
                   >
                     <div
-                      class=""
+                      class="paragraph"
                       data-perseus-paragraph-index="0"
                     >
-                      greater
-                    </div>
-                    <div
-                      class=""
-                      data-perseus-paragraph-index="1"
-                    >
-                      /less than or equal to
+                      <div
+                        class="paragraph"
+                      >
+                        greater/less than or equal to
+                      </div>
                     </div>
                   </div>
                 </span>

packages/perseus/src/widgets/dropdown/dropdown.tsx

@@ -79,7 +79,6 @@ class Dropdown extends React.Component<Props> implements Widget {
                     <Renderer
                         content={this.props.placeholder}
                         strings={this.context.strings}
-                        inline
                     />
                 }
                 labelAsText={this.props.placeholder}
@@ -92,7 +91,6 @@ class Dropdown extends React.Component<Props> implements Widget {
                         <Renderer
                             content={choice}
                             strings={this.context.strings}
-                            inline
                         />
                     }
                     labelAsText={choice}