fix: Show tag button adding containers with tags from library [FC-0123] (#3017)

Author: ChrisChV

src/course-outline/data/apiHooks.ts

@@ -128,6 +128,11 @@ export const useCreateCourseBlock = (
         queryKey: courseOutlineQueryKeys.courseDetails(getCourseKey(data.locator)),
       });
       await invalidateParentQueries(queryClient, variables);
+      // Invalidate tags count for the newly created block
+      // Strips "+type@<blockType>+block@<id>" to produce a course-run wildcard, e.g.
+      // "block-v1:org+course+run+type@vertical+block@abc" → "block-v1:org+course+run*"
+      const contentPattern = data.locator.replace(/\+type@.*$/, '*');
+      queryClient.invalidateQueries({ queryKey: ['contentTagsCount', contentPattern] });
       // scroll to newly added block
       setData({ id: data.locator });
       // if newly created block is chapter or section, fetch and add it to store