Amended SVC Icons

v1.3 Changelog:

● Re-Amended "Disconnected" texture
● Re-Amended "Microphone Off" texture
● Re-Amended "Hide Button" texture
● Re-Amended "Group HUD Button" texture
● Re-Amended "Leave" texture
● Re-Amended "Speaker Off" texture
● Re-Amended "Speaker Small Off" texture

This is a decently sized update this time around. Something that has always bugged me with SVC is how, when something is "off", a big red line is slapped across it. With this update, the line is now slightly less striking and leans more toward a pinkish red, so the meaning remains obvious, but the actual texture no longer looks quite as lazy.