Maroon-568 [Settings] Add Mouse Sensitivity setting

[FlorianGlawogger]

Fix #568

• Added a ControlsManager GlobalEntitity that could be extended in the future, for now, it is only responsible for storing the mouse sensitivity
• Added a mouse sensitivity setting
• Restructured main and pause menu, instead of "Audio" and "Language" buttons you now have one settings button, and this button opens a settings menu that contains "Audio"; "Language", and "Controls" ("Controls" contains mouse sensitivity)

[Averimon]

Looks good. Personally, I think we could maybe increase the possibility for maximum mouse sensitivity for more accessibility. But feel free to let me know what you think, @FlorianGlawogger :)

[FlorianGlawogger]

@Averimon Increased the max possible mouse sensitivity to 1000; in order to make it easier to also select lower sensitivity values the slider now uses a logarithmic range