Rename tsx files without JSX to ts files (#8085)

This makes it clearer which files contain React components, and which do not.

# Important Notes
The main things that should be tested to confirm that this did not break anything is the two files containing Tailwind classes:
- Shortcuts ("delete" in context menu should still be red. `text-delete` is used elsewhere though, so this should not be broken either way)
- Indentation of directory contents (multiple levels)
Many of the others should more or less be self-testing:
- `index.tsx` -> `index.ts` would break the entire app if not handled properly
- `hooks.tsx` contains `useNavigate` which would break routing if absent, and `useToastAndLog` which would break most  toast notifications.
- `http.tsx` contains the HTTP client which would break all backend requests
- `useRefresh.tsx` would... break login and logout if it was broken I guess

app/ide-desktop/lib/dashboard/bundle.ts

@@ -32,7 +32,7 @@ async function bundle() {
         })
         opts.entryPoints.push(
             path.resolve(THIS_PATH, 'src', 'index.html'),
-            path.resolve(THIS_PATH, 'src', 'index.tsx')
+            path.resolve(THIS_PATH, 'src', 'index.ts')
         )
         opts.metafile = ANALYZE
         opts.loader['.html'] = 'copy'

app/ide-desktop/lib/dashboard/src/authentication/src/dashboard/indent.tsx → app/ide-desktop/lib/dashboard/src/authentication/src/dashboard/indent.ts

@@ -1,8 +1,5 @@
 /** @file Utilities for indenting elements. */
 
-// Although this file does not contain JSX, it must be a `.tsx` file for Tailwind to include its
-// strings as classes.
-
 // =================
 // === Constants ===
 // =================

app/ide-desktop/lib/dashboard/src/authentication/src/dashboard/shortcuts.tsx → app/ide-desktop/lib/dashboard/src/authentication/src/dashboard/shortcuts.ts

@@ -27,8 +27,6 @@ import UntrashIcon from 'enso-assets/untrash.svg'
 
 import * as detect from 'enso-common/src/detect'
 
-// This file MUST be a `.tsx` file so that Tailwind includes the CSS classes used here.
-
 // =================
 // === Constants ===
 // =================

app/ide-desktop/lib/dashboard/src/authentication/src/hooks.tsx → app/ide-desktop/lib/dashboard/src/authentication/src/hooks.ts

@@ -19,7 +19,7 @@ import * as loggerProvider from './providers/logger'
 export function useToastAndLog() {
     const logger = loggerProvider.useLogger()
     return React.useCallback(
-        <T,>(
+        <T>(
             messagePrefix: string | null,
             error?: errorModule.MustNotBeKnown<T>,
             options?: toastify.ToastOptions

app/ide-desktop/lib/dashboard/tailwind.config.ts

@@ -14,7 +14,7 @@ const THIS_PATH = path.resolve(path.dirname(url.fileURLToPath(import.meta.url)))
 
 // The names come from a third-party API and cannot be changed.
 /* eslint-disable no-restricted-syntax, @typescript-eslint/naming-convention */
-export const content = [THIS_PATH + '/src/**/*.tsx']
+export const content = [THIS_PATH + '/src/**/*.tsx', THIS_PATH + '/src/**/*.ts']
 export const important = `:is(.enso-dashboard, .enso-chat)`
 export const theme = {
     extend: {

app/ide-desktop/lib/dashboard/test-server.ts

@@ -22,7 +22,7 @@ const OPTS = bundler.bundlerOptions({ outputPath: '/', devMode: true })
 OPTS.define['REDIRECT_OVERRIDE'] = JSON.stringify(`http://localhost:${PORT}`)
 OPTS.entryPoints.push(
     path.resolve(THIS_PATH, 'src', 'index.html'),
-    path.resolve(THIS_PATH, 'src', 'index.tsx'),
+    path.resolve(THIS_PATH, 'src', 'index.ts'),
     path.resolve(THIS_PATH, 'src', 'serviceWorker.ts')
 )
 OPTS.write = false

app/ide-desktop/lib/dashboard/watch.ts

@@ -24,7 +24,7 @@ const OPTS = bundler.bundlerOptions({ outputPath: '/', devMode: process.env.DEV_
 OPTS.define['REDIRECT_OVERRIDE'] = JSON.stringify(`http://localhost:${PORT}`)
 OPTS.entryPoints.push(
     path.resolve(THIS_PATH, 'src', 'index.html'),
-    path.resolve(THIS_PATH, 'src', 'index.tsx'),
+    path.resolve(THIS_PATH, 'src', 'index.ts'),
     path.resolve(THIS_PATH, 'src', 'serviceWorker.ts')
 )
 OPTS.minify = false