Wizard: Remove first boot script from services when no script

There is a bug that makes `custom-first-boot` service stay in services when the first boot script is removed.

How to reproduce:
1. create a blueprint with a first boot script
2. download the blueprint and confirm `custom-first-boot` was added to enabled services
3. click on "Edit blueprint"
4. go to First boot step and remove the script
5. save edited blueprint

Current behaviour:
- `custom-first-boot` service should be still enabled even with the removed first boot script

Updated behaviour:
- `custom-first-boot` is no longer in the blueprint after first boot script got removed

src/Components/CreateImageWizard/utilities/requestMapper.ts

@@ -565,6 +565,13 @@ const getServices = (state: RootState): Services | undefined => {
   if (includeFBSvc) {
     enabledSvcs = [...enabledSvcs, FIRST_BOOT_SERVICE];
   }
+  if (
+    (!selectFirstBootScript(state) ||
+      selectFirstBootScript(state).length === 0) &&
+    enabledSvcs.includes(FIRST_BOOT_SERVICE)
+  ) {
+    enabledSvcs = enabledSvcs.filter((s) => s !== FIRST_BOOT_SERVICE);
+  }
   if (
     enabledSvcs.length === 0 &&
     services.masked.length === 0 &&