ノートのインスタンス情報の背景色が反映されないことがあるのを修正する

packages/client/src/components/instance-ticker.vue

@@ -7,6 +7,7 @@
 
 <script lang="ts" setup>
 import { } from 'vue';
+import tinycolor from 'tinycolor2';
 import { instanceName } from '@/config';
 
 const props = defineProps<{
@@ -24,10 +25,10 @@ const instance = props.instance ?? {
 	themeColor: (document.querySelector('meta[name="theme-color-orig"]') as HTMLMetaElement)?.content
 };
 
-const themeColor = instance.themeColor ?? '#777777';
+const themeColor = tinycolor(instance.themeColor ?? '#777777');
 
 const bg = {
-	background: `linear-gradient(90deg, ${themeColor}, ${themeColor}00)`
+	background: `linear-gradient(90deg, ${themeColor}, ${themeColor.clone().setAlpha(0)})`
 };
 </script>