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

🤔