Add checkbox to toggle infamous round-thingy

[yahoo1999]

We all know that round-thingy is both loved and hated by LHM community. This PR adds a checkbox in HUD settings panel that allows users to disable it without modifying the source code. To be in line with Lexogrine's strict rules on Round Thingies, the round-thingy in question is visible by default. User needs to disable it by checking the checkbox. Checking the checkbox adds appropriately named class 'PepeHands' to round-thingy making it invisible.

[osztenkurden]

I like the name of the class, not gonna lie

[yahoo1999]

Took you a good while to notice. To the point I had to check what it actually was 😆