Added localised strings.

Only override name when editing profile.

_locales/en/messages.json

@@ -1648,5 +1648,13 @@
   "settingsUnblockHeader": {
     "message": "Blocked Users",
     "description": "Shown in the settings page as the heading for the blocked user settings"
+  },
+  "editProfileTitle": {
+    "message": "Change your own display name",
+    "description": "The title shown when user edits their own profile"
+  },
+  "editProfileDisplayNameWarning": {
+    "message": "Note: Your display name will be visible to your contacts",
+    "description": "Shown to the user as a warning about setting display name"
   }
 }

js/background.js

@@ -574,8 +574,8 @@
       const displayName = profile && profile.name && profile.name.displayName;
       if (appView) {
         appView.showNicknameDialog({
-          title: 'Change your own display name',
-          message: 'Note: Your display name will be visible to your contacts.',
+          title: window.i18n('editProfileTitle'),
+          message: window.i18n('editProfileDisplayNameWarning'),
           nickname: displayName,
           onOk: async (newName) => {
             // Update our profiles accordingly'
@@ -585,6 +585,7 @@
               await storage.removeLocalProfile();
             } else {
               newProfile = {
+                ...(profile || {}),
                 name: {
                   displayName: trimmed,
                 },