Add a thank you note option to existing supporting libraries via the Recommend Us tool

[rhb123]

Would it be possible to update the Recommend Us tool at #74 to add an option under step 2, if results are shown, to give the user the option to generate a template thank you email to their library please?

This could potentially be very useful in showing the library that their OLH membership is recognised and appreciated by their users, making it more likely to be kept in the face of cuts, or even being put at a higher budget priority at renewal.

This would need both a clipboard copy function and an auto-open-text-in-email button, and then ideally then also take the user to the 'I have emailed my library' button and link share options at the end of the tool. Many thanks @joemull !