style: remove unnecessary margin-top from div.up and pre elements in default-base.css for improved layout consistency

- Eliminated margin-top styles from div.up and pre elements to enhance visual structure and responsiveness.
- This change aligns with previous efforts to refine styles for better layout control across the plugin.

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

@@ -1385,7 +1385,6 @@ a.list {
 }
 
 div.up {
-    margin-top: -30px;
     border: 1px solid var(--border-color);
     padding: 4px 6px;
     overflow: auto;
@@ -1458,9 +1457,6 @@ div.spinner .unraid_mark_7 {
         transform: translateY(0px);
     }
 }
-pre.up {
-    margin-top: -30px;
-}
 pre {
     border: 1px solid var(--border-color);
     font-family: bitstream;
@@ -2287,7 +2283,6 @@ span#wlan0 {
     }
 
     div.up {
-        margin-top: -20px;
         border: 1px solid var(--table-alt-border-color);
     }