Remove remaining references to useUser(s).

Add Channel object.

src/context/intermediate/popovers/UserProfile.tsx

@@ -31,7 +31,6 @@ import {
     useChannels,
     useForceUpdate,
     useUserPermission,
-    useUsers,
 } from "../../revoltjs/hooks";
 import { useIntermediate } from "../Intermediate";
 

src/context/revoltjs/hooks.ts

@@ -77,18 +77,6 @@ function useObject(
         : map.toArray();
 }
 
-export function useUser(id?: string, context?: HookContext) {
-    if (typeof id === "undefined") return;
-    return useObject("users", id, context) as Readonly<Users.User> | undefined;
-}
-
-export function useUsers(ids?: string[], context?: HookContext) {
-    return useObject("users", ids, context) as (
-        | Readonly<Users.User>
-        | undefined
-    )[];
-}
-
 export function useChannel(id?: string, context?: HookContext) {
     if (typeof id === "undefined") return;
     return useObject("channels", id, context) as