Fix typo in Strimzi overview dashboard widget title. (#24229)

Remove duplicated "Endpoint" from cluster endpoint widget title.

Co-authored-by: Cursor <cursoragent@cursor.com>

Author: trevdem

strimzi/assets/dashboards/overview.json

@@ -284,7 +284,7 @@
                             "grouping": "cluster",
                             "tags": [],
                             "time": {},
-                            "title": "Cluster Endpoint Endpoint",
+                            "title": "Cluster Endpoint",
                             "title_align": "left",
                             "title_size": "16",
                             "type": "check_status"