Add strict blocking mode for domain filters

[Alex-302]

Issue Details

https://github.com/gorhill/ublock/wiki/Strict-blocking

Related to https://github.com/AdguardTeam/AdguardBrowserExtension/issues/2760

CC: @yarynanowak

Proposed solution

Add strict blocking mode for domain filters. It will be useful, when user import filters with rules like ||example.com^ (usually, related to security)

An option should be mentioned on the dummy page.

[Alex-302]

May be used in Mv3, if https://github.com/AdguardTeam/AdguardBrowserExtension/issues/2992 will be fixed.