Fix Share GitHub Permalink as Markdown to use filename instead of cursor text (#8251)

* Initial plan

* Initial plan for fixing permalink markdown link text

Co-authored-by: alexr00 <38270282+alexr00@users.noreply.github.com>

* Fix Share GitHub Permalink as Markdown to always use filename

Co-authored-by: alexr00 <38270282+alexr00@users.noreply.github.com>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: alexr00 <38270282+alexr00@users.noreply.github.com>

Author: Copilot

src/issues/shareProviders.ts

@@ -218,27 +218,7 @@ export class GitHubPermalinkAsMarkdownShareProvider extends GitHubPermalinkShare
 	}
 
 	private async getMarkdownLinkText(item: vscode.ShareableItem): Promise<string | undefined> {
-		const fileName = pathLib.basename(item.resourceUri.path);
-
-		if (item.selection) {
-			const document = await vscode.workspace.openTextDocument(item.resourceUri);
-
-			const editorSelection = item.selection.start === item.selection.end
-				? item.selection
-				: new vscode.Range(item.selection.start, new vscode.Position(item.selection.start.line + 1, 0));
-
-			const selectedText = document.getText(editorSelection);
-			if (selectedText) {
-				return selectedText;
-			}
-
-			const wordRange = document.getWordRangeAtPosition(item.selection.start);
-			if (wordRange) {
-				return document.getText(wordRange);
-			}
-		}
-
-		return fileName;
+		return pathLib.basename(item.resourceUri.path);
 	}
 }