Convert frontend code to typescript (#31559)

None of the frontend js/ts files was touched besides these two commands
(edit: no longer true, I touched one file in
61105d0618
because of a deprecation that was not showing before the rename).

`tsc` currently reports 778 errors, so I have disabled it in CI as
planned.

Everything appears to work fine.

web_src/js/features/org-team.ts

@@ -0,0 +1,39 @@
+import $ from 'jquery';
+import {hideElem, showElem} from '../utils/dom.ts';
+
+const {appSubUrl} = window.config;
+
+export function initOrgTeamSettings() {
+  // Change team access mode
+  $('.organization.new.team input[name=permission]').on('change', () => {
+    const val = $('input[name=permission]:checked', '.organization.new.team').val();
+    if (val === 'admin') {
+      hideElem('.organization.new.team .team-units');
+    } else {
+      showElem('.organization.new.team .team-units');
+    }
+  });
+}
+
+export function initOrgTeamSearchRepoBox() {
+  const $searchRepoBox = $('#search-repo-box');
+  $searchRepoBox.search({
+    minCharacters: 2,
+    apiSettings: {
+      url: `${appSubUrl}/repo/search?q={query}&uid=${$searchRepoBox.data('uid')}`,
+      onResponse(response) {
+        const items = [];
+        $.each(response.data, (_i, item) => {
+          items.push({
+            title: item.repository.full_name.split('/')[1],
+            description: item.repository.full_name,
+          });
+        });
+
+        return {results: items};
+      },
+    },
+    searchFields: ['full_name'],
+    showNoResults: false,
+  });
+}