Update change nickname message

_locales/en/messages.json

@@ -1897,8 +1897,7 @@
       "Shown in the settings page as the heading for the blocked user settings"
   },
   "editProfileTitle": {
-    "message":
-      "Change your own display name (alphanumeric characters and underscores only)",
+    "message": "Change your own display name",
     "description": "The title shown when user edits their own profile"
   },
   "editProfileDisplayNameWarning": {

package.json

@@ -3,7 +3,7 @@
   "productName": "Loki Messenger",
   "description": "Private messaging from your desktop",
   "repository": "https://github.com/loki-project/loki-messenger.git",
-  "version": "1.0.0-beta6",
+  "version": "1.0.0-beta7",
   "license": "GPL-3.0",
   "author": {
     "name": "Loki Project",