Added `Alpha` input to func_precipitation in Hammer (FGD)
Potential crash fixes
Fix "Rotation Yaw Flip Random" particle operator regression
Now acts like it used to
Default "randomly_flip_direction" to 0 for "Rotation Random"
Add `addons/` to autorefresh whitelist
Prevent crashes with render.Capture
Fixed potential Lua error with Playermodel Selector
Minor cleanups
Merge PR: Group mountable games by install state
Reuse localization strings in main menu replacement buttons
Change default hostname to "My Garry's Mod Server"