Refactor user storage and update

Rename accounts to users to be consistent with the new naming scheme
where account only referes to the logged in user of the session and
implement live updates of users via a user store which listens for
updates from the event stream.

composables/accounts.ts

@@ -1,10 +0,0 @@
-export const useAccounts = () => useFetch(
-	"/api/accounts",
-	{
-		transform: (input) => input === undefined ? false as any as null: input,
-		getCachedData(key, nuxtApp) {
-			return nuxtApp.payload.data[key];
-		},
-		dedupe: "defer",
-	}
-);