remove exclamation mark. ref...

remove exclamation mark. ref https://grammar.yourdictionary.com/punctuation/when/when-to-use-exclamation-marks.html

proxy/static/_locales/en_US/messages.json

@@ -18,7 +18,7 @@
     "message": "Number of users currently connected: $1"
   },
   "popupStatusReady": {
-    "message": "Your Snowflake is ready to help users circumvent censorship!"
+    "message": "Your Snowflake is ready to help users circumvent censorship"
   },
   "popupWebRTCOff": {
     "message": "WebRTC feature is not detected."