refactor: remove extraneous prepend func & use arrow fn

src/TemplateEngine.ts

@@ -49,7 +49,7 @@ export function NoteTemplateEngine(template: string, episode: Episode) {
 			if (prependToLines) {
 				return htmlToMarkdown(episode.description)
 					.split("\n")
-					.map(prepend(prependToLines))
+					.map((str) => `${prependToLines}${str}`)
 					.join("\n")
 			}
 
@@ -64,10 +64,6 @@ export function NoteTemplateEngine(template: string, episode: Episode) {
 	});
 }
 
-function prepend(prepend: string) {
-	return (str: string) => `${prepend}${str}`;
-}
-
 export function TimestampTemplateEngine(template: string) {
 	return TemplateEngine(template, {
 		"time": (format?: string) => get(plugin).api.getPodcastTimeFormatted(format ?? "HH:mm:ss"),