Fix RequestRowDetails hover state to prevent lighten effect inheritance

- Add CSS rules to disable filter brightness effects on expanded request rows
- Prevent RequestRowDetails from inheriting tbody tr:hover lightening behavior
- Maintain intended background color and remove unwanted border changes on hover
- Apply hover overrides to both row and cell elements for complete coverage
- Ensure expanded row details maintain consistent appearance during interaction

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

src/components/httprequestviewer/RequestRowDetails.module.css

@@ -8,6 +8,18 @@ tr {
     margin-top: 0.5rem;
 }
 
+/* Ensure expanded row doesn't inherit hover effects from tbody tr:hover */
+.expandedRow:hover {
+    filter: none !important;
+    background-color: var(--color-bg-secondary) !important;
+    border: none !important;
+}
+
+.expandedRow:hover td {
+    filter: none !important;
+    border: none !important;
+}
+
 div.expandedContent {
     margin: 0 32px;
     border: 1px solid #6c757d;