feat(Templates): Add TemplateCard and shareable filtering using new backend endpoints and content types

Closes #1675 (closed), Closes #1663 (closed), Closes #1513 (closed)

Some notes:

• The update includes some changes to fix console warnings related to required props.
• Many components are converted to typescript.
• Template cards are showing only the first target research field.
• There is more refactoring and conversion to typescript of files changed in this merge request but I would keep it for another occasion because the changes are getting bigger and scope of this MR is to use the new backend endpoints.
• There was a bug on featured templates based on the target research field, they were not loading since we moved to paper content type.

Screenshot: