Add an option to choose from existing game tags

[Pietruszek]

I use around 5 different tags to tag all of the games that are not on my hidden list. It's quite tedious to type the exact name of a specific tag each time. It would be nice if the existing game tags were visible on the "Edit game tags" pop-up either as a regular list or a drop down list.

[rafaelgomesxyz]

Added, hope it's how you wanted.

[Pietruszek]

Looks good. Thank you very much <3