Default new profile name to launcher username (#1066)

Instead of always naming new profiles "SPTarkov", use the launcher
username as the default.

This improves the UX as you can quickly click through account creation
on multiple accounts without needing to remember to re-enter a new
profile name for each account

project/src/callbacks/ProfileCallbacks.ts

@@ -118,6 +118,12 @@ export class ProfileCallbacks {
      * Handle client/game/profile/nickname/reserved
      */
     public getReservedNickname(url: string, info: IEmptyRequestData, sessionID: string): IGetBodyResponseData<string> {
+        const fullProfile = this.profileHelper.getFullProfile(sessionID);
+        if (fullProfile?.info?.username)
+        {
+            return this.httpResponse.getBody(fullProfile.info.username);
+        }
+
         return this.httpResponse.getBody("SPTarkov");
     }