Add RSS icon to top bar

src/css/exceptions/rss.css

@@ -0,0 +1,17 @@
+.rss {
+	flex-grow: initial;
+
+	img, svg {
+		width: 20px;
+		aspect-ratio: 1;
+		height: auto;
+		vertical-align: middle;
+	}
+
+	&:hover {
+		svg {
+			background-color: var(--color-primary);
+			color: var(--color-secondary);
+		}
+	}
+}