improve the profile system

[raresy]

since profiles are a huge mess right now, here are a few ways to improve the current system:

1. have the "new profile" button create a blank/stock profile instead of making a copy of the one the user is currently using
2. let the user choose whether minecraft controls stay the same across profile switches, instead of forcing each profile to have its own separate control configuration
3. get rid of the delete/favourite icons in favour of a single settings icon that opens a context menu, letting the user do the following to a profile:

• clone
• rename
• change icon
• favourite
• export/share (would be nice to be able to share configs, imo)
• delete (red spooky button)

4. have the settings icon only appear when the user is using that profile / hovering over it

for exporting/sharing profiles, a button to open the directory where profiles are stored somewhere would also be a nice addition for ease of access