[Discover] Deangularize controller part 1 (#93896)

* Refactor minimumVisibleRows

* Extract setupVisualization function

* Extract getDimensions function

* Inline breadcrumb and help menu function exec to discover.tsx

* Extract getStateDefault 

* Remove unnecessary code

* Improve performance by React.memo

src/plugins/discover/public/__mocks__/index_pattern_with_timefield.ts

@@ -22,6 +22,8 @@ const fields = [
     type: 'date',
     scripted: false,
     filterable: true,
+    aggregatable: true,
+    sortable: true,
   },
   {
     name: 'message',
@@ -34,12 +36,14 @@ const fields = [
     type: 'string',
     scripted: false,
     filterable: true,
+    aggregatable: true,
   },
   {
     name: 'bytes',
     type: 'number',
     scripted: false,
     filterable: true,
+    aggregatable: true,
   },
   {
     name: 'scripted',
@@ -55,14 +59,14 @@ fields.getByName = (name: string) => {
 
 const indexPattern = ({
   id: 'index-pattern-with-timefield-id',
-  title: 'index-pattern-without-timefield',
+  title: 'index-pattern-with-timefield',
   metaFields: ['_index', '_score'],
   flattenHit: undefined,
   formatHit: jest.fn((hit) => hit._source),
   fields,
   getComputedFields: () => ({}),
   getSourceFiltering: () => ({}),
-  getFieldByName: () => ({}),
+  getFieldByName: (name: string) => fields.getByName(name),
   timeFieldName: 'timestamp',
 } as unknown) as IndexPattern;
 

src/plugins/discover/public/__mocks__/ui_settings.ts

@@ -7,12 +7,14 @@
  */
 
 import { IUiSettingsClient } from 'kibana/public';
-import { SAMPLE_SIZE_SETTING } from '../../common';
+import { DEFAULT_COLUMNS_SETTING, SAMPLE_SIZE_SETTING } from '../../common';
 
 export const uiSettingsMock = ({
   get: (key: string) => {
     if (key === SAMPLE_SIZE_SETTING) {
       return 10;
+    } else if (key === DEFAULT_COLUMNS_SETTING) {
+      return ['default_column'];
     }
   },
 } as unknown) as IUiSettingsClient;