refactor chain click

[LawyZheng]

[!IMPORTANT] Refactor chain_click in handler.py to enhance error handling and element interaction, adding new methods to SkyvernElement and SkyvernFrame for improved robustness.

• Behavior:
  • Refactor chain_click in handler.py to improve error handling and element interaction.
  • Add error message parameter to FailToClick exception in exceptions.py.
  • Handle label elements, non-visible elements, and blocking elements in chain_click.
• Element Handling:
  • Add is_visibile(), is_parent_of(), is_child_of(), and is_sibling_of() methods to SkyvernElement in dom.py.
  • Add get_blocking_element_id() and is_sibling() methods to SkyvernFrame in page.py.
• JavaScript Enhancements:
  • Add isParent(), isSibling(), and getBlockElementUniqueID() functions in domUtils.js to support new element checks.

^{This description was created by for 41333d748afeb71d2cd2df15e1befe16ae8ba4a2. It will automatically update as commits are pushed.}