Unnecessary browsing history collection, add option to opt out

[swaree]

What it says on the tin. See #152 .

[maripo]

Simply removed. https://github.com/maripo/CustomFilter/commit/9f427d26b21828fde746c8418cc6a3ba2819acab There are too many things to do to make it compatible with Manifest v3 to release it right away.