feat: basic initial implementation of spotify client link validator and song submission form refs: NOISSUE

song_of_the_day/Pages/Shared/_Layout.cshtml

@@ -43,6 +43,12 @@
                                 <a class="nav-link text-dark" asp-area="" asp-page="/UnclaimedPhoneNumbers">Unclaimed Phone Numbers</a>
                             </li>
                         }
+                        @if (this.User.Identity.IsAuthenticated && DoesUserHaveClaimedPhoneNumber())
+                        {
+                            <li class="nav-item">
+                                <a class="nav-link text-dark" asp-area="" asp-page="/SubmitSongs">Submit Songs</a>
+                            </li>
+                        }
                     </ul>
                 </div>
             </div>