Revert "Navbar: style fixes for gitea 1.20"

Changes that expected gitea 1.20 needs to be reverted 2/2.

This reverts commit f2717d098b.

public/css/theme-bthree-dark.css

@@ -293,10 +293,34 @@
   color: var(--color-label-text);
 }
 
+.following.bar #navbar {
+  min-height: 45px;
+}
+
+/* Align items (notifications, dropdown toggle) to the right. */
+.following.bar #navbar .brand {
+  justify-content: flex-end !important;
+}
+
 .ui.tabular.menu {
   border-color: var(--color-border);
 }
 
+/* Navbar logo. */
+.item.brand a {
+  opacity: .8;
+  transition: opacity var(--transition-speed) ease-in-out;
+}
+
+.item.brand a:hover {
+  opacity: 1;
+}
+
+.item.brand svg {
+  height: 21px;
+  color: #fff;
+}
+
 .ui.breadcrumb a {
   color: var(--color-text);
 }

templates/custom/body_inner_pre.tmpl

@@ -455,7 +455,7 @@
 </style>
 
 <style>
-  /* Custom styling for projects.blender.org */
+  /* Custom styling for code.blender.org */
   /* Make sure to start every line with ".nav-global"
    * so changes affect the developer navbar only. */
 
@@ -467,22 +467,6 @@
       max-width: 1170px;
     }
   }
-
-  /* Override Gitea's default navbar height. */
-  #navbar {
-    min-height: 46px;
-  }
-
-  /* Hide the site logo. */
-  #navbar .item:first-child {
-    display: none;
-  }
-
-  /* Fix alignment of text in dropdown items. */
-  .ui.dropdown>.text {
-    position: relative;
-    top: -2px;
-  }
 </style>
 
 <div class="nav-global">