Clarify storybook tests (#6073)

In this PR, I'm simplifying storybook setup:
1) Remove build --test configuration that prevent autodocs. We are not
using autodocs at all (the dev experience is not good enough), so I have
completely disabled it.
2) Clarify `serve` vs `test` vs `serve-and-test` configurations


After this PR:
- you can serve storybook in two modes: `npx nx run
twenty-front:storybook:serve:dev` and `npx nx run
twenty-front:storybook:serve:static`
- you can run tests agains an already served storybook (this is useful
in dev so you don't have to rebuild everytime to run tests): `npx nx run
twenty-front:storybook:test`
- you can conbine both: `npx nx run
twenty-front:storybook:serve-and-test:static`

packages/twenty-ui/project.json

@@ -43,10 +43,10 @@
         "test": {}
       }
     },
-    "storybook:dev": {
+    "storybook:serve:dev": {
       "options": { "port": 6007 }
     },
-    "storybook:static": {
+    "storybook:serve:static": {
       "options": {
         "buildTarget": "twenty-ui:storybook:build",
         "port": 6007
@@ -59,7 +59,7 @@
     "storybook:test": {
       "options": { "port": 6007 }
     },
-    "storybook:static:test": {
+    "storybook:serve-and-test:static": {
       "options": { "port": 6007 }
     }
   }