区分环境进行按需加载，提升本地开发加载速度。

更改侧边栏活跃色，让其和element-ui皮肤统一。
修复issue https://github.com/flipped-aurora/gin-vue-admin/issues/1347

web/src/pinia/modules/user.js

@@ -15,7 +15,7 @@ export const useUserStore = defineStore('user', () => {
     headerImg: '',
     authority: {},
     sideMode: 'dark',
-    activeColor: '#4D70FF',
+    activeColor: 'var(--el-color-primary)',
     baseColor: '#fff'
   })
   const token = ref(window.localStorage.getItem('token') || '')
@@ -123,10 +123,7 @@ export const useUserStore = defineStore('user', () => {
     }
   })
   const activeColor = computed(() => {
-    if (userInfo.value.sideMode === 'dark' || userInfo.value.sideMode === 'light') {
-      return '#4D70FF'
-    }
-    return userInfo.activeColor
+    return 'var(--el-color-primary)'
   })
 
   watch(() => token.value, () => {