Fix top margin for bottom attached header (#11480) (#11485)

* Fix top margin for bottom attached header (#11480)

(cherry picked from commit 6b798feaf6)

* restart ci

Co-authored-by: Lauris BH <lauris@nix.lv>

web_src/less/_base.less

@@ -1234,7 +1234,7 @@ i.icon.centerlock {
 }
 
 /* https://github.com/go-gitea/gitea/issues/10210 */
-.ui.attached.segment ~ .ui.attached.header {
+.ui.attached.segment ~ .ui.top.attached.header {
     margin-top: 1rem;
 }