perf: hide toast on setup page (halo-dev/console#740)

#### What type of PR is this?

/kind improvement
/milestone 2.0

#### What this PR does / why we need it:

在首次初始化页面隐藏 `资源不存在` 的提示，这是由 https://github.com/halo-dev/console/pull/732 带来的问题。

#### Special notes for your reviewer:

测试方式：

1. 准备全新的环境。
2. 进入初始化页面，检查是否存在 `资源不存在` 的提示。

#### Does this PR introduce a user-facing change?

```release-note
None
```

src/main.ts

@@ -228,7 +228,6 @@ async function initApp() {
     }
 
     await loadUserPermissions();
-    await loadActivatedTheme();
 
     try {
       await loadPluginModules();
@@ -239,6 +238,10 @@ async function initApp() {
     // load system setup state
     const systemStateStore = useSystemStatesStore();
     await systemStateStore.fetchSystemStates();
+
+    if (systemStateStore.states.isSetup) {
+      await loadActivatedTheme();
+    }
   } catch (e) {
     console.error(e);
   } finally {

src/stores/system-states.ts

@@ -1,5 +1,6 @@
-import { apiClient } from "@/utils/api-client";
 import { defineStore } from "pinia";
+import axios from "axios";
+import type { ConfigMap } from "@halo-dev/api-client";
 
 interface SystemState {
   isSetup: boolean;
@@ -19,10 +20,14 @@ export const useSystemStatesStore = defineStore({
   actions: {
     async fetchSystemStates() {
       try {
-        const { data } =
+        const { data } = await axios.get<ConfigMap>(
-          await apiClient.extension.configMap.getv1alpha1ConfigMap({
+          `${
-            name: "system-states",
+            import.meta.env.VITE_API_URL
-          });
+          }/api/v1alpha1/configmaps/system-states`,
+          {
+            withCredentials: true,
+          }
+        );
 
         if (data.data) {
           this.states = JSON.parse(data.data["states"]);