feat: integrate dayjs with duration plugin and update imports

src/shared/dayjs/index.ts

@@ -0,0 +1,6 @@
+import dayjs from "dayjs"
+import duration from "dayjs/plugin/duration"
+
+dayjs.extend(duration)
+
+export default dayjs

src/shared/web-client/index.ts

@@ -1,5 +1,5 @@
 import axios from "axios"
-import dayjs from "dayjs"
+import dayjs from "@/shared/dayjs"
 
 const WebClient = axios.create({
   baseURL: import.meta.env.VITE_API_BASE_URL,