refactor: move Guild setPositions methods to managers (#6875)

Co-authored-by: Jiralite <33201955+Jiralite@users.noreply.github.com>

src/structures/Guild.js

@@ -1187,24 +1187,14 @@ class Guild extends AnonymousGuild {
    * <info>Only one channel's parent can be changed at a time</info>
    * @param {ChannelPosition[]} channelPositions Channel positions to update
    * @returns {Promise<Guild>}
+   * @deprecated Use {@link GuildChannelManager#setPositions} instead
    * @example
    * guild.setChannelPositions([{ channel: channelId, position: newChannelIndex }])
    *   .then(guild => console.log(`Updated channel positions for ${guild}`))
    *   .catch(console.error);
    */
-  async setChannelPositions(channelPositions) {
-    const updatedChannels = channelPositions.map(r => ({
-      id: this.client.channels.resolveId(r.channel),
-      position: r.position,
-      lock_permissions: r.lockPermissions,
-      parent_id: typeof r.parent !== 'undefined' ? this.channels.resolveId(r.parent) : undefined,
-    }));
-
-    await this.client.api.guilds(this.id).channels.patch({ data: updatedChannels });
-    return this.client.actions.GuildChannelsPositionUpdate.handle({
-      guild_id: this.id,
-      channels: updatedChannels,
-    }).guild;
+  setChannelPositions(channelPositions) {
+    return this.channels.setPositions(channelPositions);
   }
 
   /**
@@ -1218,26 +1208,14 @@ class Guild extends AnonymousGuild {
    * Batch-updates the guild's role positions
    * @param {GuildRolePosition[]} rolePositions Role positions to update
    * @returns {Promise<Guild>}
+   * @deprecated Use {@link RoleManager#setPositions} instead
    * @example
    * guild.setRolePositions([{ role: roleId, position: updatedRoleIndex }])
    *  .then(guild => console.log(`Role positions updated for ${guild}`))
    *  .catch(console.error);
    */
-  async setRolePositions(rolePositions) {
-    // Make sure rolePositions are prepared for API
-    rolePositions = rolePositions.map(o => ({
-      id: this.roles.resolveId(o.role),
-      position: o.position,
-    }));
-
-    // Call the API to update role positions
-    await this.client.api.guilds(this.id).roles.patch({
-      data: rolePositions,
-    });
-    return this.client.actions.GuildRolesPositionUpdate.handle({
-      guild_id: this.id,
-      roles: rolePositions,
-    }).guild;
+  setRolePositions(rolePositions) {
+    return this.roles.setPositions(rolePositions);
   }
 
   /**