optimize(projects): add type WatermarkProps

Author: honghuangdc

src/App.vue

@@ -1,6 +1,7 @@
 <script setup lang="ts">
 import { computed } from 'vue';
 import { NConfigProvider, darkTheme } from 'naive-ui';
+import type { WatermarkProps } from 'naive-ui';
 import { useAppStore } from './store/modules/app';
 import { useThemeStore } from './store/modules/theme';
 import { naiveDateLocales, naiveLocales } from './locales/naive';
@@ -22,7 +23,7 @@ const naiveDateLocale = computed(() => {
   return naiveDateLocales[appStore.locale];
 });
 
-const watermarkProps = computed(() => {
+const watermarkProps = computed<WatermarkProps>(() => {
   return {
     content: themeStore.watermark.text,
     cross: true,