chore: Move to Typescript (#2783)

This PR moves the entire project to Typescript. Due to the ~1000 ignores this will lead to a messy codebase for a while, but the churn is worth it – all of those ignore comments are places that were never type-safe previously.

closes #1282

app/utils/developer.ts

@@ -0,0 +1,10 @@
+// A function to delete all IndexedDB databases
+export async function deleteAllDatabases() {
+  const databases = await window.indexedDB.databases();
+
+  for (const database of databases) {
+    if (database.name) {
+      await window.indexedDB.deleteDatabase(database.name);
+    }
+  }
+}