call game functions with user ids as ints instead of strings
provide fix for issue #73
fix buttonState handler
display modal in case of game_error
check for registered user when sending an invite
fix modal message when accepting a friend request
user profile page: fix display of game stats and provide quick fix for button alignment + button styles
provide quick fix for back button (may needs to be update later to always direct to main_menu and change svg for that --> depends on changes being made to frontend profile page by Wayne) and layout margins