Fix the profilepicture url issue (it wasn't sent to the db)

add a prototype of a more generic uploadfile function in uploads.js

makes the distinction between a master cursus and a bachelor cursus in display

frontend/src/Apps/AboutRequest.vue

@@ -9,10 +9,10 @@ let request = await getRegisters(props.target);
 const cursus = await getcurriculum(request.curriculum);
 
 function getPP(){
-  if(request.profilePicture === null){
+  if(request.profilePictureUrl === null){
     return "/Clyde.png"
   }
-  return request.profilePicture;
+  return request.profilePictureUrl;
 }
 </script>