Refactor admin layout and update Ganjoor theme styles

GanjooRazor/Pages/Shared/_AdminLayout.cshtml

@@ -462,7 +462,7 @@
     </script>
 </head>
 
-<body>
+<body class="admin-body">
     <header>
         <nav class="navbar navbar-expand-sm navbar-toggleable-sm navbar-light bg-white border-bottom box-shadow mb-3">
             <div class="container">
@@ -497,6 +497,19 @@
                                 <a class="dropdown-item" asp-area="Admin" asp-page="PublicDataImport">درون‌ریزی دادهٔ عمومی</a>
                             </div>
                         </li>
+
+                        <li class="nav-item">
+                            <a class="nav-link text-dark" href="javascript:toggleColorScheme();" title="تغییر پوسته">
+                                <span id="icon-sun"><svg height="24px" viewBox="0 -960 960 960" width="24px" fill="burlywood"><path d="M440-760v-160h80v160h-80Zm266 110-55-55 112-115 56 57-113 113Zm54 210v-80h160v80H760ZM440-40v-160h80v160h-80ZM254-652 140-763l57-56 113 113-56 54Zm508 512L651-255l54-54 114 110-57 59ZM40-440v-80h160v80H40Zm157 300-56-57 112-112 29 27 29 28-114 114Zm283-100q-100 0-170-70t-70-170q0-100 70-170t170-70q100 0 170 70t70 170q0 100-70 170t-170 70Z" /></svg></span>
+                                <span id="icon-moon"><svg height="24px" viewBox="0 -960 960 960" width="24px" fill="#cc4444"><path d="M480-120q-150 0-255-105T120-480q0-150 105-255t255-105q14 0 27.5 1t26.5 3q-41 29-65.5 75.5T444-660q0 90 63 153t153 63q55 0 101-24.5t75-65.5q2 13 3 26.5t1 27.5q0 150-105 255T480-120Z" /></svg></span>
+                            </a>
+                        </li>
+
+                        <li class="nav-item">
+                            <form method="post" action="/login?handler=Logout">
+                                <button type="submit" class="nav-link text-dark" title="خروج از حساب کاربری">خروج</button>
+                            </form>
+                        </li>
                     </ul>
                 </div>
             </div>