chore: rename files

Author: herzog0

static/css/v3/components.css

@@ -48,6 +48,6 @@
 @import "./join-card.css";
 @import "./badge-button.css";
 @import "./library-item.css";
-@import "./downloads_table_card.css";
-@import "./release_highlights_card.css";
+@import "downloads-table-card.css";
+@import "release-highlights-card.css";
 @import "./media-text-card.css";