Fix: Icons collapsing in flex.

Feature: Remember what channel was opened last.
Channels: ESC to focus message box / cancel editing.

src/lib/ConditionalLink.tsx

@@ -0,0 +1,15 @@
+import { Link, LinkProps } from "react-router-dom";
+
+type Props = LinkProps & JSX.HTMLAttributes<HTMLAnchorElement> & {
+    active: boolean
+};
+
+export default function ConditionalLink(props: Props) {
+    const { active, ...linkProps } = props;
+
+    if (active) {
+        return <a>{ props.children }</a>;
+    } else {
+        return <Link {...linkProps} />;
+    }
+}