* MM-8853: Adding MANAGE_EMOJIS and MANAGE_OTHERS_EMOJIS permissions * MM-8853: Removing unnecesary emoji enterprise feature * Create emojis migration * Adding MANAGE_EMOJIS and MANAGE_OTHERS_EMOJIS always to system admins * Simplifing permissions checks * Revert "Simplifing permissions checks" This reverts commit e2cafc1905fc9e20125dd9a1552d2d0c7340ae59.