feat(theme): 更新系统主题色为紫色调

- 将默认主题色从绿色 #18a058 更改为紫色 #4834D4
- 同步更新 hover 和 pressed 状态的衍生颜色
- 确保主题色在整个应用中保持一致性

src/store/app/index.ts

@@ -55,7 +55,7 @@ export const useAppStore = defineStore('app-store', {
     // 重置所有设置
     resetAlltheme() {
       this.theme = themeConfig
-      this.primaryColor = '#18a058'
+      this.primaryColor = '#4834D4'
       this.collapsed = false
       this.grayMode = false
       this.colorWeak = false

src/store/app/theme.json

@@ -1,9 +1,9 @@
 {
   "common": {
-    "primaryColor": "#18a058",
+    "primaryColor": "#4834D4",
-    "primaryColorHover": "#36ad6a",
+    "primaryColorHover": "#5b49d8",
-    "primaryColorPressed": "#0c7a43",
+    "primaryColorPressed": "#3d2ac5",
-    "primaryColorSuppl": "#36ad6a",
+    "primaryColorSuppl": "#5b49d8",
     "infoColor": "#2080f0",
     "infoColorHover": "#4098fc",
     "infoColorPressed": "#1060c9",