Add Marina Aísa to delegates.txt

[marinaaisa]

Add Marina Aísa to delegates.txt

[ctcpip]

@marinaaisa Hi, thanks for creating this PR! New TLAs must be 3 letters. Conventionally this would be the first letter of your first name and the first and last letters of your last name, but MAA is already taken. Please update with an available 3-letter TLA when you have a chance. Thanks 🙏

CI failure for reference:

Error: Line 319: 2-letter abbreviation "MA" not in allowlist. New delegate abbreviations must be three letters.

[marinaaisa]

@marinaaisa Hi, thanks for creating this PR! New TLAs must be 3 letters. Conventionally this would be the first letter of your first name and the first and last letters of your last name, but MAA is already taken. Please update with an available 3-letter TLA when you have a chance. Thanks 🙏

CI failure for reference:

Error: Line 319: 2-letter abbreviation "MA" not in allowlist. New delegate abbreviations must be three letters.

Thank you for your review, @ctcpip ! I fixed my TLA, it now has 3 letters :)