Initial version of the new search interface (#27301)

* Initial version of the new search interface

* Fixing CI

* style tweaks

* tweaks to date picker in search

* change search input to button

* Addressing a lot of small problems

* Addressing current search visualization

* Fixing problem on filter autocompletion

* Adding some more fixes

* Tiny style ajustment

* Removing unnecessary slice call

* Adding search extensibility

* Improving the extensibility

* Fixing and refactoring a bit

* On clear click, clear the current search

* splitting components for simplicity

* tweaks to file ext search

* Addressing PR review comments and adding color to the extensions search icons

* Improving a bit the extension search

* Fixing CI

* Fixing some bugs

* Keep the focus on search input whenever we change the search type

* Adding SearchHint tests

* Adding search_box_type_selector tests

* Adding tests for the SearchBox component

* Adding tests for search box suggestions

* Adding SearchBoxInput tests

* Splitting extension suggestion component and provider

* ExtensionSuggestion tests

* Removing unneeded property

* Adding SearchBoxhints tests

* Adding tests for NewSearch component

* Adding tests for the extension suggestion provider

* Fixing linter errors

* Fixing tests

* Fixing linter errors

* Fixing linter errors

* Adding license check for plugins

* Addressing PR review comments

* Addressing PR review comments

* Addressing PR review comments

* Fixing tests

* Fixing some cypress tests

* More work around cypress tests for search

* Some accessibility changes

* more work on cypress tests

* fixing more cypress tests

* Fixing linter errors

* Fixing tests

* Fixing ctrl+f6 switching

* Fixing scrolling on small windows wheneve you are searching

* Improve editing in the middle of the search text

* Addressing some PR review comments

* Addressing some PR review comments

* Addressing some PR review comments

* Addressing some PR review comments

* Fixing tests and linter errors

* Fixingls tests and linter errors

* Fix type checks

* Clearer logic to render plugin or builtin suggestion

* Addressing PR review changes

* Addressing PR review changes

* Using selectors for plugin components

* Changing uppercase to lowercase on lists of components

* Updating tests

* Updating snapshots

* minor css tweaks

* minor css tweak

* Adding the search type and the clear button

* Fixing problem with the filetype selector

* fixing linter errors

* Some fixes

* More linter fixes

* Reverting prettier auto-formating

* Fixing CI

* Fixing CI

* Fixing chrome problem

* Fixing CI

* Addressing PR review comments

---------

Co-authored-by: Matthew Birtch <mattbirtch@gmail.com>
Co-authored-by: Christopher Speller <crspeller@gmail.com>
Co-authored-by: Mattermost Build <build@mattermost.com>

e2e-tests/cypress/tests/support/ui/search.ts

@@ -5,7 +5,8 @@ import {ChainableT} from 'tests/types';
 
 function uiSearchPosts(searchTerm: string) {
     // # Enter the search terms and hit enter to start the search
-    cy.get('#searchBox').clear().type(searchTerm).type('{enter}');
+    cy.get('#searchFormContainer').should('be.visible').click();
+    cy.get('#searchBox').find('input').clear().type(searchTerm).type('{enter}');
 
     // * Wait for the RHS to open and the search results to appear
     cy.contains('.sidebar--right__header', 'Search Results').should('be.visible');