feat: ✨ 在生成主题色时考虑暗黑模式和亮色模式的不同需求

新增 getDarkColor 和 getLightColor 函数分别用于加深和变浅颜色值

BREAKING CHANGE: 优化颜色调整算法，使主题色在不同模式下更加协调

src/store/modules/settings.store.ts

@@ -34,7 +34,7 @@ export const useSettingsStore = defineStore("setting", () => {
     [theme, themeColor],
     ([newTheme, newThemeColor]) => {
       toggleDarkMode(newTheme === ThemeMode.DARK);
-      const colors = generateThemeColors(newThemeColor);
+      const colors = generateThemeColors(newThemeColor, newTheme);
       applyTheme(colors);
     },
     { immediate: true }