Add ability to remove profile picture on Profile Settings (#538)

* Add ability to remove profile picture on Profile Settings

* Fix lint

* Fix according to review

front/src/modules/users/queries/update.ts

@@ -0,0 +1,28 @@
+import { gql } from '@apollo/client';
+
+export const UPDATE_USER = gql`
+  mutation UpdateUser($data: UserUpdateInput!, $where: UserWhereUniqueInput!) {
+    updateUser(data: $data, where: $where) {
+      id
+      email
+      displayName
+      firstName
+      lastName
+      avatarUrl
+    }
+  }
+`;
+
+export const UPDATE_PROFILE_PICTURE = gql`
+  mutation UploadProfilePicture($file: Upload!) {
+    uploadProfilePicture(file: $file)
+  }
+`;
+
+export const REMOVE_PROFILE_PICTURE = gql`
+  mutation RemoveProfilePicture($where: UserWhereUniqueInput!) {
+    updateUser(data: { avatarUrl: { set: null } }, where: $where) {
+      id
+    }
+  }
+`;