Notify users of outdated filter lists in issue reporter

Background / User story

Outdated filter lists are likely to cause issues so we may want to provide users who attempt to report an issue an easy way to update those from right within the issue reporter.

See https://issues.adblockplus.org/ticket/3749

What to change

Design: TBD
Research: TBD
Spec: TBD

Hints for testers

TBD

Hints for translators

TBD

Integration notes

TBD

Edited Dec 09, 2019 by Thomas Greiner

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