Create weekly digest email with insights

[TejasS1233]

now the content of this should be automated to all voluntary recipients based on weekly trends or general tips

[github-actions]

The GitHub issue proposes the creation of a weekly digest email featuring automated insights for voluntary recipients. The email content should be generated based on weekly trends or general tips, aiming to provide helpful and timely updates to users in an efficient manner.

[TejasS1233]

implemented