Suggested changes are not easily distinguishable (#5720)

* Suggested changes are not easily distinguishable
Fixes #5667

* fix get suggestion

Author: alexr00

src/github/prComment.ts

@@ -186,7 +186,7 @@ export class TemporaryComment extends CommentBase {
 	}
 }
 
-const SUGGESTION_EXPRESSION = /```suggestion(\r\n|\n)((?<suggestion>[\s\S]*?)(\r\n|\n))?```/;
+const SUGGESTION_EXPRESSION = /```suggestion(\u0020*(\r\n|\n))((?<suggestion>[\s\S]*?)(\r\n|\n))?```/;
 
 export class GHPRComment extends CommentBase {
 	public commentId: string;
@@ -291,7 +291,7 @@ export class GHPRComment extends CommentBase {
 	get suggestion(): string | undefined {
 		const match = this.rawComment.body.match(SUGGESTION_EXPRESSION);
 		const suggestionBody = match?.groups?.suggestion;
-		if (match?.length === 5) {
+		if (match?.length === 6) {
 			return suggestionBody ? `${suggestionBody}\n` : '';
 		}
 	}
@@ -305,7 +305,7 @@ export class GHPRComment extends CommentBase {
 			return `***
 Suggested change:
 \`\`\`
-${args[2] ?? ''}
+${args[3] ?? ''}
 \`\`\`
 ***`;
 		});