feat: move templates into AFFiNE (#5750)

Related to https://github.com/toeverything/blocksuite/pull/6156

### Change
Move the edgeless templates to AFFiNE. All templates are stored as zip files. Run `node build-edgeless.mjs` in `@affine/templates` to generate JSON-format templates and importing script. The template will be generated automatically during building and dev (`yarn dev`).

tools/cli/src/bin/dev-core.ts

@@ -171,6 +171,14 @@ function awaitChildProcess(child: ChildProcess): Promise<number> {
 }
 
 try {
+  await awaitChildProcess(
+    spawn('node', ['build-edgeless.mjs'], {
+      cwd: path.resolve(projectRoot, 'packages/frontend/templates'),
+      stdio: 'inherit',
+      shell: true,
+      env: process.env,
+    })
+  );
   // Start webpack
   await awaitChildProcess(
     spawn(