Fix error in query on activity page

client/src/graphql/gql/queries/myActivity.gql

@@ -1,27 +1,32 @@
 query MyActivityQuery {
   myInstrumentActivity {
-	  edges {
+    edges {
-	    node {
+      node {
-	      id
+        id
         title
         contents
         type {
           id
           type
-          category
+          category {
+            id
+            name
+            foreground
+            background
+          }
         }
         slug
-	      bookmarks {
+        bookmarks {
-	        id
+          id
           uuid
           note {
             id
             text
           }
-	      }
+        }
-	    }
+      }
-	  }
+    }
-	}
+  }
   myActivity {
     edges {
       node {