docs: remove freenode channel from support list (#29370)
docs: remove freenode channel from support list (#29370)


gerhardberger/electron,electron/electron,gerhardberger/electron,electron/electron,gerhardberger/electron,electron/electron,gerhardberger/electron,gerhardberger/electron,gerhardberger/electron,electron/electron,gerhardberger/electron,electron/electron,electron/electron,electron/electron