Cleanup: renaming "frame" to "character"

The "frame" variable actually contains a string pointing to the character selected.
It has nothing to do with a frame which is usually a particular image in an animation.

I'm renaming the variable accross the application to avoid confusion.

back/src/Model/Websocket/ExSocketInterface.ts

@@ -7,6 +7,6 @@ export interface ExSocketInterface extends Socket {
     webRtcRoomId: string;
     userId: string;
     name: string;
-    frame: string;
+    character: string;
     position: PointInterface;
-}
+}

back/src/Model/Websocket/ExtRoom.ts

@@ -25,7 +25,7 @@ let RefreshUserPositionFunction = function(rooms : ExtRooms, Io: socketIO.Server
             roomId: socket.roomId,
             position: socket.position,
             name: socket.name,
-            frame: socket.frame,
+            character: socket.character,
         };
         let dataArray = <any>[];
         if (mapPositionUserByRoom.get(data.roomId)) {
@@ -41,4 +41,4 @@ let RefreshUserPositionFunction = function(rooms : ExtRooms, Io: socketIO.Server
 
 export {
     RefreshUserPositionFunction
-}
+}

back/src/Model/Websocket/Message.ts

@@ -2,7 +2,7 @@ export class Message {
     userId: string;
     roomId: string;
     name: string;
-    frame: string;
+    character: string;
 
     constructor(data: any) {
         if (!data.userId || !data.roomId) {
@@ -11,7 +11,7 @@ export class Message {
         this.userId = data.userId;
         this.roomId = data.roomId;
         this.name = data.name;
-        this.frame = data.frame;
+        this.character = data.character;
     }
 
     toJson() {
@@ -19,7 +19,7 @@ export class Message {
             userId: this.userId,
             roomId: this.roomId,
             name: this.name,
-            frame: this.frame
+            character: this.character
         }
     }
-}
+}