Update encounter submission mail legal statement

[vkirkl]

Expected Behavior
The legal statement in the email received after an encounter submission should have CXL as copyright holder

(Bonus! While fixing this, remove the square brackets from the community link: "Do not reply to this email. For questions and comments, go to [ community.wildme.org ].")

Current Behavior
"LEGAL STATEMENT
Wildbook is copyrighted 2025 by Wild Me. Individual contributors to Wildbook retain copyrights for submitted images. No reproduction or usage of material in this library is permitted without the express permission of the copyright holders."

Testing Notes
Note that the encounter update statement is correct:
"LEGAL STATEMENT
Wildbook is copyrighted 2025 by Conservation X Labs. Individual contributors to Wildbook retain copyrights for submitted images. No reproduction or usage of material in this library is permitted without the express permission of the copyright holders."