Increase friends list limit cap & improving removing friends

Hi I just feel like friend list should be given more space. I think I had around 317 people or around that number and i already couldn't add/ people could not add me and I didn't want to get rid of anyone.

Also removing friends if you have such high number manually one by one is really annoying, should be some feature to mark all/or mark some of them and delete more than one.

[sg-ezreal]