[JENKINS-73668] fix styling of rowSelectionController dropdown (#9641)

* [JENKINS-73668] fix stlying of rowSelectionController dropdown

ensure there is enough gap between entries

* style it as before with smaller dropdown button

* apply prettier

war/src/main/scss/components/_row-selection-controller.scss

@@ -93,14 +93,14 @@
 
 .jenkins-table__checkbox-options {
   height: 1.375rem;
-  min-height: unset;
-  padding: 0 0.2rem;
-  margin-left: 0.2rem;
+  min-height: unset !important;
+  padding: 0 0.2rem !important;
+  margin: 0 0 0 0.2rem !important;
   border-radius: 6px;
 
   svg {
-    width: 0.9rem;
-    height: 0.9rem;
+    max-width: 0.9rem;
+    max-height: 0.9rem;
     pointer-events: none;
     color: var(--input-border);
     transition: var(--standard-transition);
@@ -185,6 +185,9 @@
     justify-content: flex-start;
     gap: 0.75rem;
     border-radius: 10px;
+    margin: 0 !important;
+    padding: 0.5rem 0.9rem !important;
+    min-height: 2.25rem !important;
   }
 
   &--visible {