activity: add channel notification setting endpoints
activity: add channel notification setting endpoints

kwagdy/koding-1,alex-ionochkin/koding,usirin/koding,jack89129/koding,sinan/koding,gokmen/koding,szkl/koding,mertaytore/koding,kwagdy/koding-1,drewsetski/koding,kwagdy/koding-1,gokmen/koding,szkl/koding,andrewjcasal/koding,usirin/koding,acbodine/koding,cihangir/koding,acbodine/koding,szkl/koding,jack89129/koding,drewsetski/koding,cihangir/koding,andrewjcasal/koding,cihangir/koding,drewsetski/koding,mertaytore/koding,usirin/koding,jack89129/koding,alex-ionochkin/koding,acbodine/koding,usirin/koding,cihangir/koding,jack89129/koding,sinan/koding,gokmen/koding,alex-ionochkin/koding,drewsetski/koding,gokmen/koding,koding/koding,szkl/koding,alex-ionochkin/koding,szkl/koding,cihangir/koding,andrewjcasal/koding,gokmen/koding,jack89129/koding,sinan/koding,andrewjcasal/koding,usirin/koding,acbodine/koding,sinan/koding,acbodine/koding,szkl/koding,koding/koding,acbodine/koding,gokmen/koding,alex-ionochkin/koding,mertaytore/koding,rjeczalik/koding,rjeczalik/koding,kwagdy/koding-1,rjeczalik/koding,koding/koding,acbodine/koding,mertaytore/koding,sinan/koding,sinan/koding,cihangir/koding,jack89129/koding,cihangir/koding,gokmen/koding,koding/koding,sinan/koding,koding/koding,rjeczalik/koding,alex-ionochkin/koding,usirin/koding,kwagdy/koding-1,cihangir/koding,gokmen/koding,rjeczalik/koding,andrewjcasal/koding,szkl/koding,andrewjcasal/koding,mertaytore/koding,mertaytore/koding,kwagdy/koding-1,alex-ionochkin/koding,kwagdy/koding-1,mertaytore/koding,acbodine/koding,szkl/koding,rjeczalik/koding,rjeczalik/koding,usirin/koding,jack89129/koding,rjeczalik/koding,koding/koding,usirin/koding,mertaytore/koding,andrewjcasal/koding,jack89129/koding,drewsetski/koding,koding/koding,kwagdy/koding-1,drewsetski/koding,alex-ionochkin/koding,koding/koding,drewsetski/koding,sinan/koding,drewsetski/koding,andrewjcasal/koding