Minor cleanup and add sentry.

src/util/translations/en-US/renderer.json

@@ -1,6 +1,9 @@
 {
 	"translation": {
 		"auth": {
+			"labels": {
+				"welcome": "Welcome {{name}}"
+			},
 			"login": {
 				"error": "The username and password combination provided is not valid.",
 				"login": "Log In",
@@ -19,6 +22,7 @@
 				"stopwatcher": "Stop Watcher\n"
 			},
 			"labels": {
+				"pollinginterval": "Polling Interval (ms)",
 				"started": "Started",
 				"stopped": "Stopped",
 				"watchedpaths": "Watched Paths",