feat(editor): link insertion full UI and flow

web/src/assets/main.css

@@ -315,6 +315,16 @@ body {
 .article-content a:hover {
 	text-decoration-thickness: 2px;
 }
+.article-content a:focus-visible,
+.article-content .article-link-focus {
+	outline: 2px solid var(--ui-primary);
+	outline-offset: 2px;
+}
+.article-content a::selection,
+.article-content a *::selection {
+	background: var(--rc-sand);
+	color: var(--rc-on-sand);
+}
 .article-content img {
 	display: block;
 	max-width: 100%;