feat(editor): template gfx extension (#11939)

Closes: BS-3212

blocksuite/affine/all/package.json

@@ -187,7 +187,8 @@
     "./gfx/mindmap/view": "./src/gfx/mindmap/view.ts",
     "./gfx/connector": "./src/gfx/connector.ts",
     "./gfx/group": "./src/gfx/group.ts",
-    "./gfx/template": "./src/gfx/template.ts",
+    "./gfx/template": "./src/gfx/template/index.ts",
+    "./gfx/template/view": "./src/gfx/template/view.ts",
     "./gfx/turbo-renderer": "./src/gfx/turbo-renderer.ts",
     "./components/block-selection": "./src/components/block-selection.ts",
     "./components/block-zero-width": "./src/components/block-zero-width.ts",