Add gap to commit status details (go-gitea#30284)

Before:
<img width="162" alt="Screenshot 2024-04-05 at 02 25 27"
src="https://github.com/go-gitea/gitea/assets/115237/9f786811-3e45-4b3c-aaf9-e1d2cad284d2">

After:
<img width="172" alt="Screenshot 2024-04-05 at 02 27 25"
src="https://github.com/go-gitea/gitea/assets/115237/f5254877-9e0d-44cb-9605-ba15c75872bb">

web_src/css/repo.css

@@ -2855,6 +2855,7 @@ tbody.commit-list {
   display: flex;
   align-items: center;
   justify-content: flex-end;
+  gap: 8px;
 }
 
 @media (max-width: 767.98px) {