style(ui): enlarge row action icons and rebalance clients table widths

Bump row action icons to 18px across the clients, inbounds, groups and
nodes tables for better visibility.

In the clients table, cap the Client column at 220px and give Duration a
fixed width so the Traffic column becomes the flexible one that absorbs
the remaining horizontal space instead of Client growing oversized.

frontend/src/pages/clients/ClientsPage.tsx

@@ -605,19 +605,19 @@ export default function ClientsPage() {
       render: (_v, record) => (
         <Space size={4}>
           <Tooltip title={t('pages.clients.qrCode')}>
-            <Button size="small" type="text" icon={<QrcodeOutlined />} onClick={() => onShowQr(record)} />
+            <Button size="small" type="text" style={{ fontSize: 18 }} icon={<QrcodeOutlined />} onClick={() => onShowQr(record)} />
           </Tooltip>
           <Tooltip title={t('pages.clients.clientInfo')}>
-            <Button size="small" type="text" icon={<InfoCircleOutlined />} onClick={() => onShowInfo(record)} />
+            <Button size="small" type="text" style={{ fontSize: 18 }} icon={<InfoCircleOutlined />} onClick={() => onShowInfo(record)} />
           </Tooltip>
           <Tooltip title={t('pages.inbounds.resetTraffic')}>
-            <Button size="small" type="text" icon={<RetweetOutlined />} onClick={() => onResetTraffic(record)} />
+            <Button size="small" type="text" style={{ fontSize: 18 }} icon={<RetweetOutlined />} onClick={() => onResetTraffic(record)} />
           </Tooltip>
           <Tooltip title={t('edit')}>
-            <Button size="small" type="text" icon={<EditOutlined />} onClick={() => onEdit(record)} />
+            <Button size="small" type="text" style={{ fontSize: 18 }} icon={<EditOutlined />} onClick={() => onEdit(record)} />
           </Tooltip>
           <Tooltip title={t('delete')}>
-            <Button size="small" type="text" danger icon={<DeleteOutlined />} onClick={() => onDelete(record)} />
+            <Button size="small" type="text" danger style={{ fontSize: 18 }} icon={<DeleteOutlined />} onClick={() => onDelete(record)} />
           </Tooltip>
         </Space>
       ),
@@ -663,6 +663,7 @@ export default function ClientsPage() {
     {
       title: t('pages.clients.client'),
       key: 'email',
+      width: 220,
       render: (_v, record) => (
         <div className="email-cell">
           <span className="email">{record.email}</span>
@@ -742,7 +743,6 @@ export default function ClientsPage() {
     {
       title: t('pages.clients.traffic'),
       key: 'traffic',
-      width: 240,
       render: (_v, record) => (
         <ClientTrafficCell
           up={record.traffic?.up}
@@ -762,6 +762,7 @@ export default function ClientsPage() {
     {
       title: t('pages.clients.duration'),
       key: 'expiryTime',
+      width: 130,
       render: (_v, record) => (
         <Tooltip title={expiryLabel(record)}>
           <Tag color={expiryColor(record)}>{record.expiryTime ? expiryRelative(record) : '∞'}</Tag>

frontend/src/pages/groups/GroupsPage.tsx

@@ -407,10 +407,10 @@ export default function GroupsPage() {
       render: (_v, row) => (
         <Space size={4}>
           <Dropdown trigger={['click']} menu={{ items: rowActions(row) }}>
-            <Button size="small" type="text" icon={<MoreOutlined />} />
+            <Button size="small" type="text" style={{ fontSize: 18 }} icon={<MoreOutlined />} />
           </Dropdown>
           <Tooltip title={t('pages.groups.rename')}>
-            <Button size="small" type="text" icon={<EditOutlined />} onClick={() => openRename(row)} />
+            <Button size="small" type="text" style={{ fontSize: 18 }} icon={<EditOutlined />} onClick={() => openRename(row)} />
           </Tooltip>
         </Space>
       ),

frontend/src/pages/inbounds/list/RowActions.tsx

@@ -69,7 +69,7 @@ export function RowActionsCell({ record, subEnable, hasClients, onClick }: RowAc
   const { t } = useTranslation();
   return (
     <div className="action-buttons">
-      <Button type="text" size="small" icon={<EditOutlined />} onClick={() => onClick('edit')} />
+      <Button type="text" size="small" style={{ fontSize: 18 }} icon={<EditOutlined />} onClick={() => onClick('edit')} />
       <Dropdown
         trigger={['click']}
         menu={{
@@ -77,7 +77,7 @@ export function RowActionsCell({ record, subEnable, hasClients, onClick }: RowAc
           onClick: ({ key }) => onClick(key as RowAction),
         }}
       >
-        <Button type="text" size="small" icon={<MoreOutlined />} />
+        <Button type="text" size="small" style={{ fontSize: 18 }} icon={<MoreOutlined />} />
       </Dropdown>
     </div>
   );

frontend/src/pages/nodes/NodeList.tsx

@@ -241,18 +241,18 @@ export default function NodeList({
       ) : (
         <Space>
           <Tooltip title={t('pages.nodes.probe')}>
-            <Button type="text" size="small" icon={<ThunderboltOutlined />} onClick={() => onProbe(record)} />
+            <Button type="text" size="small" style={{ fontSize: 18 }} icon={<ThunderboltOutlined />} onClick={() => onProbe(record)} />
           </Tooltip>
           {isUpdateEligible(record) && (
             <Tooltip title={t('pages.nodes.updatePanel')}>
-              <Button type="text" size="small" icon={<CloudDownloadOutlined />} onClick={() => onUpdateNode(record)} />
+              <Button type="text" size="small" style={{ fontSize: 18 }} icon={<CloudDownloadOutlined />} onClick={() => onUpdateNode(record)} />
             </Tooltip>
           )}
           <Tooltip title={t('edit')}>
-            <Button type="text" size="small" icon={<EditOutlined />} onClick={() => onEdit(record)} />
+            <Button type="text" size="small" style={{ fontSize: 18 }} icon={<EditOutlined />} onClick={() => onEdit(record)} />
           </Tooltip>
           <Tooltip title={t('delete')}>
-            <Button type="text" size="small" danger icon={<DeleteOutlined />} onClick={() => onDelete(record)} />
+            <Button type="text" size="small" danger style={{ fontSize: 18 }} icon={<DeleteOutlined />} onClick={() => onDelete(record)} />
           </Tooltip>
         </Space>
       ),