Enable Typescript noImplicitThis (#33250)

- Enable https://www.typescriptlang.org/tsconfig/#noImplicitThis
- Wrap Vue Template-Syntax SFCs in
[`defineComponent`](https://vuejs.org/api/general#definecomponent) which
makes type inference and linter work better
- Move `createApp` calls outside the SFCs into separate files
- Use [`PropType`](https://vuejs.org/api/utility-types#proptype-t) where
appropriate
- Some top-level component properties changed order as dictated by the
linter
- Fix all tsc and lint issues that popped up during these refactors

web_src/js/features/repo-home.ts

@@ -89,7 +89,7 @@ export function initRepoTopicBar() {
       url: `${appSubUrl}/explore/topics/search?q={query}`,
       throttle: 500,
       cache: false,
-      onResponse(res) {
+      onResponse(this: any, res: any) {
         const formattedResponse = {
           success: false,
           results: [],