Polish admin hub pages: drop duplicate headers, align CTAs and empties.

Remove redundant titles under AdminHubChrome, style events/polls create flows with admin chrome + i18n, and standardize empty states / teams form classes.

Co-authored-by: Cursor <[email protected]>

src/messages/en.json

@@ -835,6 +835,26 @@
 					"cancel": "Cancel"
 				}
 			},
+			"events": {
+				"newEvent": "+ New event",
+				"createTitle": "Create event",
+				"createSubtitle": "Schedule a new hotel event"
+			},
+			"polls": {
+				"newPoll": "+ New poll",
+				"createTitle": "Create poll",
+				"createSubtitle": "Create a new community poll or survey"
+			},
+			"multiAccounts": {
+				"minAccounts": "Min accounts per cluster",
+				"resultLimit": "Result limit",
+				"refresh": "Refresh",
+				"noClusters": "No clusters found at the current thresholds."
+			},
+			"devops": {
+				"noEmulatorErrors": "No emulator errors found",
+				"noRecentErrors": "No recent errors"
+			},
 			"tags": {
 				"title": "Tags",
 				"subtitle": "Article tags / categories",