UI tour fixes and improvements

Update UI tour library
Fix popover padding in tour steps
Add 10px backdrop offset where needed
Refactor tour initialization to use defaults
Make popover-body rule more specific
Update messages.xlf

src-ui/package.json

@@ -29,7 +29,7 @@
     "ngx-color": "^9.0.0",
     "ngx-cookie-service": "^16.0.0",
     "ngx-file-drop": "^16.0.0",
-    "ngx-ui-tour-ng-bootstrap": "^13.0.2",
+    "ngx-ui-tour-ng-bootstrap": "^13.0.3",
     "rxjs": "^7.8.1",
     "tslib": "^2.6.0",
     "uuid": "^9.0.0",