You could try this:
Seems you’ve tried these, but just to doublecheck:
A specific syntax exists for whitespace control:
- An underscore
_ at the beginning of a tag (<%_) will trim all > > whitespace before the command
- An underscore
_ at the end of a tag (_%>) will trim all >whitespace after the command
- A dash
- at the beginning of a tag (<%-) will trim one newline >before the command
- A dash
- at the end of a tag (-%>) will trim one newline after >the command.
https://silentvoid13.github.io/Templater/commands/whitespace-control.html?highlight=whitespace#whitespace-control