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/models/Collection.test.ts

@@ -0,0 +1,12 @@
+/* eslint-disable */
+import stores from "~/stores";
+
+describe('Collection model', () => {
+  test('should initialize with data', () => {
+    const collection = stores.collections.add({
+      id: "123",
+      name: 'Engineering'
+    });
+    expect(collection.name).toBe('Engineering');
+  });
+});