LineageOS "ContentResolver.query" problem workaround and "Silence Call" improvements

[Efenstor]

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Concerning the first commit: after lots of consideration I think that although inserting arguments directly into the SQL query line is "a very bad idea", in this particular case it has almost no security implications as it is virtually impossible to inject garbage (or at least useful garbage) into a phone number. When weighing this very unlikely security flaw against the restored functionality under LineageOS 19.x and 20.x (or may be some other systems) I think it's worth it.

The other two commits are some improvements to the repeated call functionality, particularly related to the "Silence call" function.