feat: filetree: add nowrap to filetree list items

Author: lazhenyi

src/component/repo/fileaction.tsx

@@ -52,7 +52,9 @@ export const FileAction = ({branch, default_branch, echange, repo, owner, head}:
                 />
                 <HoverCard>
                     <HoverCardTarget>
-                        <a>{head.message}</a>
+                        <a style={{
+                            whiteSpace: "nowrap"
+                        }}>{head.message}</a>
                     </HoverCardTarget>
                     <HoverCardDropdown>
                         <div>

src/style/filetree.css

@@ -20,6 +20,7 @@
         gap: 2rem;
         flex-direction: row-reverse;
         margin-right: 2rem;
+        white-space: nowrap;
         .cmt {
             background: white;
             color: black;