optimize(projects): optimize example code about vtable,vchart

src/hooks/common/vchart.ts

@@ -1,10 +1,11 @@
 import { computed, effectScope, onScopeDispose, ref, watch } from 'vue';
+import { useElementSize } from '@vueuse/core';
 import VChart, { registerLiquidChart } from '@visactor/vchart';
 import type { ISpec, ITheme } from '@visactor/vchart';
 import light from '@visactor/vchart-theme/public/light.json';
 import dark from '@visactor/vchart-theme/public/dark.json';
-import { useElementSize } from '@vueuse/core';
 import { useThemeStore } from '@/store/modules/theme';
+
 registerLiquidChart();
 
 // register the theme