[Commands] Return message object on EditResponseAsync

[BlackLotusLV]

Description

When editing a slash command response, on success it should return a DiscordMessage object. Currently it returns a ValueTask instead of ValueTask

https://discord.com/developers/docs/resources/webhook#edit-webhook-message

DSharpPlus/DSharpPlus.Commands/CommandContext.cs

Lines 20 to 23 in 140dd6b

	public virtual ValueTask EditResponseAsync(string content) => this.EditResponseAsync(new DiscordMessageBuilder().WithContent(content));
	public virtual ValueTask EditResponseAsync(DiscordEmbed embed) => this.EditResponseAsync(new DiscordMessageBuilder().AddEmbed(embed));
	public virtual ValueTask EditResponseAsync(string content, DiscordEmbed embed) => this.EditResponseAsync(new DiscordMessageBuilder().WithContent(content).AddEmbed(embed));
	public abstract ValueTask EditResponseAsync(IDiscordMessageBuilder builder);

Specify the libraries you want this feature request to affect

DSharpPlus.Commands

Other considerations

No response