fix: perspective mod compatibility and improve mixin compatibility

[Lopesnextgen]

Right now LiquidBounce forces the player's body to rotate when moving the mouse in 3rd person (F5). This breaks mods like Lunar's Perspective/Freelook because the character keeps turning while you're just trying to look around.

I've added a check so mouse input only affects the player's body in first-person. This doesn't break any internal features or modules, and it works perfectly with both Lunar's freelook and Liquid's own modules.

I also updated the Mixin in MixinMouseHandler to use @WrapOperation to ensure better compatibility with other mods. Simple fix, but makes the client much more compatible with modern modpacks...

[MukjepScarlet]

LB has FreeLook too.

All mixin-related stuffs pending for 26.2 update

[Lopesnextgen]

Yeah, I know LB has FreeLook.

This PR is more about mod compatibility than adding a FreeLook feature. External perspective mods like Lunar's currently break because LB still applies CHANGE_LOOK rotation in third person.

If mixin changes are on hold until 26.2, I can remove that part and keep only the first-person guard in RotationManager

[MukjepScarlet]

I will convert all Redirect in 26.2 update if possible.

[MukjepScarlet]

You can keep your branch and wait for update, then resolve conflicts

[Lopesnextgen]

Alright!

I'll keep the PR open and update/rebase the branch after 26.2 lands, then resolve any conflicts.

[localpthebest]

Lunar's currently break
that would be because lunar goes out of their way to break compatability with every 3rd party mod possible

[MukjepScarlet]

I trust this repo will become 26.2 earlier than Lunar. So if you want to play on it please test and send the result to support email/bot, or open an issue here