refactor: improve header alignment and transition effects in default-base.css

- Changed header alignment from height to align-self: stretch for better responsiveness.
- Updated transition effects for title images to use transform for smoother animations.

This change aims to enhance the visual responsiveness and animation quality of the header elements. No further changes are pending for this task.

emhttp/plugins/dynamix/styles/default-base.css

@@ -431,7 +431,7 @@ textarea {
 }
 
 #header unraid-user-profile {
-    height: 100%;
+    align-self: stretch;
 }
 
 /**
@@ -606,10 +606,9 @@ div.title span img {
     content: "";
     width: 32px;
     height: 2px;
-    bottom: 8px;
     position: absolute;
     left: 50%;
-    margin-left: -16px;
+    transform: translateX(-50%) translateY(8px);
     -webkit-transition: all 0.25s ease-in-out;
     transition: all 0.25s ease-in-out;
     pointer-events: none;