Remove fomantic table module (#30047)

Big CSS module. I tested basic functionality on admin and commits table.

---------

Co-authored-by: Giteabot <teabot@gitea.io>

web_src/css/index.css

@@ -9,6 +9,7 @@
 @import "./modules/segment.css";
 @import "./modules/grid.css";
 @import "./modules/message.css";
+@import "./modules/table.css";
 @import "./modules/card.css";
 @import "./modules/modal.css";