Move '(current)' label to the checkout button column

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

src/main/resources/templates/branches.html

@@ -14,10 +14,11 @@
 </tr>
 <tr th:each="b : ${branches}">
 <td>
-<b th:if="${b == currentBranch}" th:text="${b} + ' (current)'"></b>
+<b th:if="${b == currentBranch}" th:text="${b}"></b>
 <span th:unless="${b == currentBranch}" th:text="${b}"></span>
 </td>
 <td>
+<span th:if="${b == currentBranch}">(current)</span>
 <form th:unless="${b == currentBranch}" method="post" th:action="@{/repo/{name}/checkout(name=${name})}">
 <input type="hidden" name="branch" th:value="${b}">
 <input type="submit" value="Checkout">