[BUG] Element zapper issues

[meshuggah44]

Describe the bug
There are websites, or certain elements within some websites, in which the element zapper doesn't work properly

To Reproduce
Steps to reproduce the behavior:

1. Go to https://record.pt
2. Try to block the "medialivre" stickybar
3. Even though it's possible to select it, it's not possible to save a rule, and even the preview stops working. On the other hand, both uBOL custom rule creator and Safari's own element picker manage to select it and block it

Video
https://www.capster.io/video/hNHQrQGEY8aA

Desktop (please complete the following information):

• OS: macOS Tahoe
• wBlock Version: 0.3.1 build 119
• Apple Silicon