refactor: move '我的' filter to first position in student and class list toolbars

app/templates/classes.html

@@ -8,14 +8,14 @@
         <div class="d-flex justify-content-between align-items-center">
             <div class="d-flex align-items-center gap-3">
                 <h5 class="mb-0"><i class="bi bi-collection"></i> 班级管理</h5>
+                <button class="btn btn-primary btn-sm" id="mineFilterBtn" onclick="toggleMineFilter()">
+                    <i class="bi bi-person"></i> 我的
+                </button>
                 <select class="form-select form-select-sm" style="width:auto;" id="activeFilter" onchange="loadClasses()">
                     <option value="">全部班级</option>
                     <option value="true" selected>进行中</option>
                     <option value="false">已结束</option>
                 </select>
-                <button class="btn btn-primary btn-sm" id="mineFilterBtn" onclick="toggleMineFilter()">
-                    <i class="bi bi-person"></i> 我的
-                </button>
             </div>
             <button class="btn btn-primary btn-sm" id="addClassBtn" style="display:none;">
                 <i class="bi bi-plus-circle"></i> 新增班级