fix: Loosen matching rules for URL query strings

mesoniumrequested to merge
match-url-query-less-strict into master

Matches iqueries such as =%s or == for real world examples such as

Before it would have only matched https://en.m.wikipedia.org/wiki/Special:Search?search=.

I'm not sure if this is still 100% RFC compliant. However, this matches real world URLs now, which work in the browser and are also matched in other clients such as Conversations.

Also added a test. All other test still pass.

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