Change the suffix position

Fix spelling mistake

Author: trandaison

src/utils/prompt.ts

@@ -1,14 +1,15 @@
 import * as vscode from 'vscode';
 
 export function name(filename: string): Promise<string | undefined> {
+	const value = filename.replace(/(\.[^.]+)$/, '-copy.$1');
 	return vscode.window.showInputBox({
+		value,
 		placeHolder: 'Enter the new path for the duplicate.',
-		value: filename.split('.').map((el, i) => i === 0 ? `${el}-copy` : el).join('.')
 	}) as Promise<string | undefined>;
 }
 
 export function overwrite(filepath: string): Promise<vscode.MessageItem | undefined> {
-	const message = `The path **${filepath}** alredy exists. Do you want to overwrite the existing path?`;
+	const message = `The path **${filepath}** already exists. Do you want to overwrite the existing path?`;
 	const action = {
 		title: 'OK',
 		isCloseAffordance: false