style: clean up Plugins.css by removing unnecessary styles

- Removed commented-out styles for .Theme--black and .Theme--white to streamline the CSS.
- Eliminated redundant margin-top adjustment in span.status.vhshift for improved layout clarity.

emhttp/plugins/dynamix.plugin.manager/sheets/Plugins.css

@@ -5,11 +5,4 @@
 }
 table tbody td {
     line-height: normal;
-}
-
-.Theme--black,
-.Theme--white {
-    span.status.vhshift {
-        margin-top: 8px !important;
-    }
 }