Always returning null for profile details when no profile was found, not undefined. Prevents YAML index write from failing.

src/save/profileDetails.js

@@ -41,6 +41,8 @@ async function saveProfileImage(user, args) {
             return null;
         }
     }
+
+    return null;
 }
 
 async function saveProfileDescription(user, args) {
@@ -70,6 +72,8 @@ async function saveProfileDescription(user, args) {
 
         return null;
     }
+
+    return null;
 }
 
 async function saveProfileDetails(user, args) {