fix: add missing no_results translation to common namespace

Author: hannesrudolph

webview-ui/src/i18n/locales/en/common.json

@@ -20,7 +20,8 @@
 		"billion_suffix": "b"
 	},
 	"ui": {
-		"search_placeholder": "Search..."
+		"search_placeholder": "Search...",
+		"no_results": "No results found"
 	},
 	"mermaid": {
 		"loading": "Generating mermaid diagram...",