Fix word overflow in file search page (#32695) (#32699)

Backport #32695 by yp05327

Co-authored-by: yp05327 <576951401@qq.com>

templates/repo/find/files.tmpl

@@ -9,7 +9,7 @@
 				<input id="repo-file-find-input" type="text" autofocus data-url-data-link="{{.DataLink}}" data-url-tree-link="{{.TreeLink}}">
 			</div>
 		</div>
-		<table id="repo-find-file-table" class="ui single line table">
+		<table id="repo-find-file-table" class="ui single line fixed table">
 			<tbody>
 			</tbody>
 		</table>

web_src/js/features/repo-findfile.js

@@ -90,6 +90,7 @@ function filterRepoFiles(filter) {
       const span = document.createElement('span');
       // safely escape by using textContent
       span.textContent = part;
+      span.title = span.textContent;
       // if the target file path is "abc/xyz", to search "bx", then the matchResult is ['a', 'b', 'c/', 'x', 'yz']
       // the matchResult[odd] is matched and highlighted to red.
       if (index % 2 === 1) span.classList.add('ui', 'text', 'red');