Standardize header styles for test panel
KU
10h ago+189+189+012345678901234567890123456789-5-5-0123456789
Align section header font properties and toggle indicators across both the Add a case and Test results drawers for visual consistency.
Closes #298
Summary by cubic
Standardizes header typography and toggle indicators across the Add a case and Test results drawers so both panels look and behave consistently. Closes #298.
- Replaces the text "v" chevron with a shared CSS-drawn arrow that rotates 90° when opened and returns when closed.
- Hides the native
<details>marker and applies the same font, padding, and alignment to both headers. - Adds a browser test verifying both headers share marker and typography styles and that each chevron rotates on open and restores on close.