Fix datepicker functionality for Bootstrap 5 x-editable

- Updated Gruntfile to use npm bootstrap-datepicker instead of bundled version
- Fixed DPGlobal reference from bdatepicker to datepicker
- Changed mode from inline to popup to ensure date input type is used
- Fixed missing type assignment in editable element initialization
- Enhanced input2value function with fallback logic to extract dates from dates array
- Added comprehensive debugging and error handling
- Datepicker now properly opens, captures selections, and submits formatted dates

.idea/.gitignore

@@ -0,0 +1,8 @@
+# Default ignored files
+/shelf/
+/workspace.xml
+# Editor-based HTTP Client requests
+/httpRequests/
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml