Refactor: modularize toolbar buttons, integrate config, and fix layout positioning

src/toolbar/buttons/info/index.ts

@@ -0,0 +1,16 @@
+import type { ButtonConfig } from '../../index.type';
+
+/**
+ * 定位按钮配置
+ */
+export const infoButton: ButtonConfig = {
+    id: 'info',
+    groupId: 'group-2',
+    type: 'button',
+    label: '信息',
+    icon: '<svg xmlns="http://www.w3.org/2000/svg" width="32" height="32" viewBox="0 0 24 24"><path fill="currentColor" d="M12 7q.425 0 .713-.288T13 6t-.288-.712T12 5t-.712.288T11 6t.288.713T12 7m0 8q.425 0 .713-.288T13 14v-4q0-.425-.288-.712T12 9t-.712.288T11 10v4q0 .425.288.713T12 15m-6 3l-2.3 2.3q-.475.475-1.088.213T2 19.575V4q0-.825.588-1.412T4 2h16q.825 0 1.413.588T22 4v12q0 .825-.587 1.413T20 18z"/></svg>',
+    keepActive: false,
+    onClick: (button) => {
+        console.log('信息按钮被点击:', button.id);
+    }
+};