Attach (recommended) or Link to PDF file here:
[test planning.pdf](https://github.com/mozilla/pdf.js/files/7305078/test.planning.pdf)

Configuration:
- Web browser and its version: Firefox 93
- Operating system and its version: Windows 10 21H2
- PDF.js version: The integrated version
- Is a browser extension: no

Steps to reproduce the problem:
1. In the example, all shape and the "Line" cell of the first cell have a comment
2. Mouse over a "Line" cell or a shape, nothing appear except on mouse over their border
3. It is too difficult to use
4. There is also a vertical orientation issue reported in bug #7631

What is the expected behavior? (add screenshot)
Comments are shown on mouse hover or mouse click inside a cell or a shape

What went wrong? (add screenshot)
Comments are not shown when mouse hover or clicking inside a cell or a shape, only on their border

![image](https://user-images.githubusercontent.com/7791600/136419088-e083e2a3-d376-4d8c-9e0b-ce9dd5b83923.png)



let container = this.container;
    if (this.quadrilaterals) {
      trigger = trigger || this.quadrilaterals;
      container = this.quadrilaterals[0];
    }
    
    if (!trigger) {
      trigger = document.createElement("div");
      trigger.style.height = container.style.height;
      trigger.style.width = container.style.width;
      container.appendChild(trigger);
    }
    const popupElement = new PopupElement({
      container,
      trigger,
      color: data.color,
      titleObj: data.titleObj,
      modificationDate: data.modificationDate,
      contentsObj: data.contentsObj,
      hideWrapper: true,
    });
    const popup = popupElement.render();
    
    popup.style.left = container.style.width;