Save uploaded avatar to team

api/src/schema.graphql

@@ -19,16 +19,11 @@ type Query {
 type Mutation {
   authenticate(idToken: String!): Member
   createTeam(name: String!, slug: String!, owner: String!): Team @isAuthenticated
-  updateTeamProfile(slug: String!, owner: String!, description: String, motto: String, avatar: String): Team @isAuthenticated
+  updateTeamProfile(slug: String!, owner: String!, description: String, motto: String, avatar: String, banner: String): Team @isAuthenticated
   deleteTeam(slug: String!): Team @isAuthenticated @isOwner(type: "Team")
   getAzureSAS(teamSlug: String!):String
 }
 
-input MemberProfileInput {
-  authId: String!
-  alias: String!
-}
-
 fragment MemberInfo on Member {
   id
   authId