Rework the search UI and add (#174)

* Add search tab and move icon to footer

* Remove subtitles from view header

* Remove unused code

* Clean up UI of search screen

* Search: give better user feedback to UI state and add a cancel button

* Add WhoToFollow section to search

* Add a temporary SuggestedPosts solution using the patented 'bsky team algo'

* Trigger reload of suggested content in search on open

* Wait five min between reloading discovery content

* Reduce weight of solid search icon in footer

* Fix lint

* Fix tests

__tests__/state/models/root-store.test.ts

@@ -36,6 +36,19 @@ describe('rootStore', () => {
       },
       {
         fixedTabPurpose: 1,
+        history: [
+          {
+            id: expect.anything(),
+            ts: expect.anything(),
+            url: '/search',
+          },
+        ],
+        id: expect.anything(),
+        index: 0,
+        isNewTab: false,
+      },
+      {
+        fixedTabPurpose: 2,
         history: [
           {
             id: expect.anything(),