Fix #209: move sort arrows to the right of the column label

internal/web/static/app.css

@@ -528,11 +528,11 @@ td .id-link:hover { color: var(--accent); }
 th.sortable { cursor: pointer; user-select: none; }
 th.sortable:hover { color: var(--fg); }
 th.sortable { cursor: pointer; user-select: none; white-space: nowrap; }
-/* #101: arrow sits LEFT of the label, further spaced, vertically centered,
-   and absolutely positioned so it never shifts the label text. */
-th.sortable { position: relative; padding-left: 24px; }
+/* #209: arrow sits RIGHT of the label, vertically centered, and absolutely
+   positioned so it never shifts the label text; label aligns with column contents. */
+th.sortable { position: relative; padding-right: 24px; }
 th.sortable .sort-ind {
-  position: absolute; left: 8px; top: 50%; transform: translateY(-50%);
+  position: absolute; right: 8px; top: 50%; transform: translateY(-50%);
   display: inline-block; width: 0; height: 0;
   border-left: 5px solid transparent; border-right: 5px solid transparent;
 }