Add strings.

en.json

@@ -106,6 +106,7 @@
                 "notifications": {
                     "title": "Notifications",
                     "enable_desktop": "Enable Desktop Notifications.",
+                    "enable_push": "Enable Push Notifications.",
                     "enable_sound": "Play Sound on Message."
                 },
                 "language": {
@@ -178,6 +179,13 @@
             "edit_message": "Edit Message",
             "delete_message": "Delete Message",
             "remove_member": "Remove From Group",
+
+            "open_file": "Open File",
+            "save_file": "Save File",
+            "open_image": "Open Image",
+            "save_image": "Save Image",
+            "open_video": "Open Video",
+            "save_video": "Save Video",
             
             "block_user": "Block User",
             "unblock_user": "Unblock User",
@@ -240,4 +248,4 @@
         "probe_error": "Failed to get file metadata.",
         "io_error": "Server encountered an I/O error."
     }
-}
+}
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