feature(general): email template updates (#916)

* small fixes for emails (mainly outlook)

* wip

* Update august newsletter

* wip

* wip

* text changes and preparing for september newsletter

* small changes

* Small fix for bullet points in Outlook

* Copied code for sept newsletter

* wip

* wip

* wip

* WIP

* September update

* Prettified Code!

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Co-authored-by: aurelieschmiedlin <aurelie@socialincome.org>
Co-authored-by: ssandino <ssandino@users.noreply.github.com>