Fix UI mis-align for PR commit history (go-gitea#20845)

wxiaoguang · Sysoev, Vladimir · commit 1ad180123814 · 2022-08-28T20:23:05.000+03:00
diff --git a/web_src/less/_repository.less b/web_src/less/_repository.less
@@ -906,6 +906,7 @@
 
           .singular-commit {
             line-height: 34px; /* this must be same as .badge height, to avoid overflow */
+            clear: both; // reset the "float right shabox", in the future, use flexbox instead
 
             > .avatar.image,
             > .avatar.image img {
