I am developing a vs code extension, in which I want to highlight a few lines of code for certain files:

export class SidebarProvider implements vscode.WebviewViewProvider {
  _view?: vscode.WebviewView;
  _doc?: vscode.TextDocument;

  constructor(private readonly _extensionUri: vscode.Uri) {}

  public resolveWebviewView(webviewView: vscode.WebviewView) {
    this._view = webviewView;

    webviewView.webview.options = {
      // Allow scripts in the webview
      enableScripts: true,

      localResourceRoots: [this._extensionUri],
    };
    
     webviewView.webview.html = this._getHtmlForWebview(webviewView.webview);

    webviewView.webview.onDidReceiveMessage(async (data) => {
      switch (data.type) {
        case "fetchCode": {
            ..........
            resolutionLength.forEach((async (lines, filePath) => {
                const document = await vscode.workspace.openTextDocument(filePath);
                const editor = await vscode.window.showTextDocument(document);
                for(let i=0;i<lines.length;i++) {  
                  this.highlight(editor, startPositions.get(filePath)?.at(i), 
                    resolutionLength.get(filePath)?.at(i));
                  
                }
              }));
            ............
        }
      }
    });

    private higlight(editor: vscode.TextEditor, startPosition: number | undefined, resolutionLength: number | undefined): void {
    
    const decorations: vscode.DecorationOptions[] = [];

    if(!startPosition|| !resolutionLength) {
      throw new Error('Start position or length not defined.');
    }

    const range = new vscode.Range(startPosition, 0, startPosition+ resolutionLength, 0);
    const decoration = { range, hoverMessage: 'Resolution line' };
    decorations.push(decoration);
        

    editor.setDecorations(conflictResolutionDecorationType, decorations);
  };
};

const conflictResolutionDecorationType = vscode.window.createTextEditorDecorationType({
  // Add your decoration style here
  backgroundColor: 'rgba(255, 255, 0, 0.5)'
});

When I run the extension, after the above code gets executed, the highlight on the lines appears only for a second and then disappears. Now I understand that editor is not persisting the highlight decorations once it goes out of scope. But my question is: is there any way to make this highlight permanent. That is, whenever I open any of the files which have been highlighted, I should be able to see those highlights. Is that possible?