Bunch of Replay System Additions

Although the replay system works well as is, there is also much left to be desired. I came up with a list of (i think) useful stuff.

- Allow a replay to be renamed while viewing the replay.
- Return to the replay gallery upon exiting a replay, rather than back to the game menu.
- Graphics settings access in the replay!! I have two ways to go about this:
A) A button to change your graphics settings in a replay, the same way as you do playing the game.
B) A button to toggle between low and high graphics within a replay quickly. Settings preset by the game, or preset by the user - even better!
When changing the settings, it should still keep your place and camera settings. Very useful for low-end players like myself, who need low graphics to move around smoothly, but high for the final picture!

- Confirmation on "STOP" replay button.
- User-set camera presets.
- User-set keybinds!
- Focus dropdown by clicking the username, convenient alternative to using the arrows.

Thank you!!