Serverless function follow up (#9924)

- remove asynchronous serverless function build
- build serverless function synchronously instead on activate workflow
or execute
- add a loader on workflow code step test tab test button
- add a new `ServerlessFunctionSyncStatus` `BUILDING`
- add a new route to build a serverless function draft version 
- delay artificially execution to avoid UI flashing



https://github.com/user-attachments/assets/8d958d9a-ef41-4261-999e-6ea374191e33

packages/twenty-ui/src/display/icon/components/TablerIcons.ts

@@ -173,6 +173,7 @@ export {
   IconListCheck,
   IconListDetails,
   IconListNumbers,
+  IconLoader,
   IconLock,
   IconLockOpen,
   IconMail,
@@ -236,6 +237,7 @@ export {
   IconSquare,
   IconSquareKey,
   IconSquareRoundedCheck,
+  IconSquareRoundedX,
   IconTable,
   IconTag,
   IconTags,