feat: Add setImageFromFile & seThumbnailFromFile.

Author: Ayfri

src/BetterEmbed.ts

@@ -1,4 +1,5 @@
-import {MessageEmbed, MessageEmbedOptions} from 'discord.js';
+import {MessageAttachment, MessageEmbed, MessageEmbedOptions} from 'discord.js';
+import path from 'path';
 
 type AnyObject = {[k: string]: any};
 
@@ -153,6 +154,18 @@ export class BetterEmbed extends MessageEmbed {
 		}
 	}
 
+	public setImageFromFile(link: string) {
+		const attachment = new MessageAttachment(link, path.basename(link));
+		this.attachFiles([attachment]);
+		this.setImage(`attachment://${attachment.name}`);
+	}
+	
+	public setThumbnailFromFile(link: string) {
+		const attachment = new MessageAttachment(link, path.basename(link));
+		this.attachFiles([attachment]);
+		this.setThumbnail(`attachment://${attachment.name}`);
+	}
+	
 	public throwIfTooLong(field: keyof Template): void;
 	public throwIfTooLong(field?: keyof Template) {
 		if (field) {