hide-autofill-popup only when webcontent is focused

[darkdh]

• Submitted a ticket for my issue if one did not already exist.
• Used Github auto-closing keywords in the commit message.
• Added/updated tests for this change (for new code or code which already has tests).
• Ran git rebase -i to squash commits (if needed).

also fix frontend id typo leads to crash

fix #5939

Auditor: @bridiver

Test plan:

1. Create an autofill entry
2. Open https://www.roboform.com/filling-test-all-fields
3. Click on the field to show autofill suggestion, it should fill the fields after clicking on the suggestion

[bsclifton]

Nice fix! I confirmed this works as expected! 😄

screenshot showing I'm actually on latest muon (and not using 53!)

[luixxiul]

@bbondy Merged to master?

[darkdh]

It's on master now since 54 has been merged into master