BS-14227 Errors in tooltip of error decorator for invalid form entry

BS-14227 Errors in tooltip of error decorator for invalid form entry
change page to form according to Chris

bundles/plugins/org.bonitasoft.studio.designer/messages.properties

@@ -6,7 +6,7 @@ widgetRepository=Custom Widgets
 externalURL=External URL
 targetForm=Target form
 url=URL
-pageDoesntExists=Page "{0}" doesn't exists.
+pageDoesntExists=Form with id "{0}" does not exist.
 caseStartFormMappingDescription=Select the type of form used to instantiate the process. Subscription edition: With "Live Update", you can update your process live to map a different form after deployment.
 entryFormMappingDescription=Select the type of form used to fulfill the contract. Subscription edition: With "Live Update", you can update your process live to map a different form after deployment.
 caseOverviewFormMappingDescription=The overview page is displayed in Bonita BPM Portal when you click the Overview button in the Case details page. There are no restrictions on the information that this page can include. If you do not specify a page, a default overview page is provided.