feat(mailtools): improve removal of email trackers

[OmarMcAdam]

currently the mail parser removes simple tracking pixels by the size of the image or by known urls(only one for now)
we should expand the list of URLs to include other known trackers.

heres some links to other URL lists:
https://github.com/Foundry376/Mailspring/blob/e7daf5abf255aedfceadb33ef7209dc9101074a0/app/internal_packages/remove-tracking-pixels/lib/main.ts#L42
https://github.com/leavemealone-app/email-trackers/blob/master/trackers.txt
https://github.com/nylas/nylas-mail/blob/e16cb1982e944ae7edb69b1abef1436dd16b442d/packages/client-app/internal_packages/remove-tracking-pixels/lib/main.es6#L32
https://github.com/leggett/simplify-trackers/blob/56f01d5d96e7f0f09f4a664c5faafba52a2e1fce/ruby/Trackers.rb#L70
https://github.com/OneClickLab/ugly-email-trackers/blob/master/list.txt

we should check the license on each of these, and use as many as we can

[babblebey]

Changes be made in this file and related!?

https://github.com/un/inbox/blob/main/packages/mailtools/src/blockRemoteContent/index.ts

🤔