refactor(PageHeaderActions): restructure actions layout and enhance button visibility for improved user interaction

frontend/src/ServerManager.jsx

@@ -602,7 +602,7 @@ function ServerManager() {
           </span>
         }
         actions={
-          <div className="d-flex flex-wrap align-items-center gap-2">
+          <>
             <PageHeaderActions
               loading={loading}
               onRefresh={handleRefreshAll}
@@ -612,33 +612,34 @@ function ServerManager() {
               onSave={handleSaveChanges}
               disableSave={loading}
             />
-            <span className="vr d-none d-md-inline align-self-center" style={{ minHeight: '1.5rem' }} />
-            <div className="btn-group" role="group" aria-label="Переключение режимов">
+            <div className="mt-3 d-flex flex-wrap align-items-center justify-content-end gap-2">
+              <div className="btn-group" role="group" aria-label="Переключение режимов">
+                <button
+                  className={`btn ${activeTab === 'servers' ? 'btn-primary' : 'btn-outline-primary'}`}
+                  onClick={() => setActiveTab('servers')}
+                  type="button"
+                >
+                  <IconServer size={16} className="me-1" />
+                  Серверы
+                </button>
+                <button
+                  className={`btn ${activeTab === 'connections' ? 'btn-primary' : 'btn-outline-primary'}`}
+                  onClick={() => setActiveTab('connections')}
+                  type="button"
+                >
+                  <IconGitBranch size={16} className="me-1" />
+                  Связи
+                </button>
+              </div>
               <button
-                className={`btn ${activeTab === 'servers' ? 'btn-primary' : 'btn-outline-primary'}`}
-                onClick={() => setActiveTab('servers')}
                 type="button"
+                className="btn btn-primary"
+                onClick={handleOpenAddServerModal}
               >
-                <IconServer size={16} className="me-1" />
-                Серверы
-              </button>
-              <button
-                className={`btn ${activeTab === 'connections' ? 'btn-primary' : 'btn-outline-primary'}`}
-                onClick={() => setActiveTab('connections')}
-                type="button"
-              >
-                <IconGitBranch size={16} className="me-1" />
-                Связи
+                <IconPlus size={16} className="me-1" /> Добавить
               </button>
             </div>
-            <button
-              type="button"
-              className="btn btn-primary"
-              onClick={handleOpenAddServerModal}
-            >
-              <IconPlus size={16} className="me-1" /> Добавить
-            </button>
-          </div>
+          </>
         }
       />