fix: Make <hr> be at least 2 pixels in height

Author: bbfh-dev

assets/styles/50_main.css

@@ -110,6 +110,7 @@ aside header a {
 hr {
 	width: 100%;
 	height: 2px;
+	min-height: 2px;
 	border: none;
 	background-color: var(--fg-white);
 	opacity: 0.2;