Update (version 29.1) — McOsu Steam update #878839

- Added rich presence support (Discord + Steam) - Added user profile info + switcher to songbrowser (total weighted pp/acc/lv) - Added key overlay - Added new experimental mod "Reverse Sliders" - Added mouse sidebutton support (mouse4, mouse5) - Added positional audio for hitsounds - Added detail info tooltip (approach time, hit timings, etc.) when hovering over diff info label in songbrowser (CS AR etc.) - Added option "Rich Presence" (Options > Online > Integration) - Added option "Automatic Cursor Size" (Options > Skin > Skin) - Added letterboxing option "Horizontal position" (Options > Graphics > Layout) - Added letterboxing option "Vertical position" (Options > Graphics > Layout) - Added Score V2 keybind (defaults to 'B') - Added ConVars: osu_songbrowser_thumbnail_fade_in_duration, osu_songbrowser_background_fade_in_duration, osu_background_fade_after_load, osu_slider_end_inside_che...