refactor(core): split web entry from core (#6082)

This pr is trying to split `web` and `electron` entries from `core`. It allows more platform-related optimization to be addressed in each entry.
We should remove all browser/electron only codes from `core` eventually, this is the very first step for that.

packages/frontend/templates/build-edgeless.mjs

@@ -306,9 +306,5 @@ export const builtInTemplates = {
   });
 };
 
-async function main() {
-  const templatesInGroup = await parseSnapshot();
-  await buildScript(templatesInGroup);
-}
-
-main();
+const templatesInGroup = await parseSnapshot();
+await buildScript(templatesInGroup);

packages/frontend/templates/package.json

@@ -9,7 +9,8 @@
   "type": "module",
   "exports": {
     ".": "./templates.gen.ts",
-    "./edgeless": "./edgeless-templates.gen.ts"
+    "./edgeless": "./edgeless-templates.gen.ts",
+    "./build-edgeless": "./build-edgeless.mjs"
   },
   "devDependencies": {
     "jszip": "^3.10.1"