Adds changes to schema for altering user profile image

src/schema.gql

@@ -106,6 +106,7 @@ type UserGQL {
   id: Int!
   firebaseUid: String!
   username: String!
+  profileImageUri: String
   createdAt: DateTime
   updatedAt: DateTime
   statistics: UserStatisticsGQL!
@@ -284,6 +285,8 @@ type Mutation {
     videoMetadata: VideoMetadataInput!
   ): Boolean!
   deleteVideo(videoId: Int!): Boolean!
+  getProfileImageUploadLink(fileExt: String = ".png"): GetUploadLinkReturn!
+  editProfileImageUri(profileImageUri: String!): UserGQL!
 }
 
 input CreateBucketSetInput {