refactor!: next generation AFFiNE code structure (#1176)

scripts/vitest/next-config-mock.ts

@@ -0,0 +1,10 @@
+export default function getConfig() {
+  return {
+    publicRuntimeConfig: {
+      serverAPI: 'http://localhost:3000/api',
+      enableIndexedDBProvider: true,
+      editorVersion: 'UNKNOWN',
+      prefetchWorkspace: false,
+    },
+  };
+}