Move betrayal button, remove betrayal confirmation 🔧 (#3076)

## Description:

- Move betrayal button to the boat-sending-button-location (you can't
send boats to allies) to prevent missclicks
- Remove betrayal confirmation

<img width="260" height="248" alt="image"
src="https://github.com/user-attachments/assets/0a25fc9c-c8a0-4ba9-a8c8-971d6a7a0511"
/>

## Please complete the following:

- [X] I have added screenshots for all UI updates
- [X] I process any text displayed to the user through translateText()
and I've added it to the en.json file
- [X] I have added relevant tests to the test directory
- [X] I confirm I have thoroughly tested these changes and take full
responsibility for any bugs introduced

## Please put your Discord username so you can be contacted if a bug or
regression is found:

FloPinguin

resources/images/CheckmarkIconWhite.svg

@@ -1,3 +0,0 @@
-<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100">
-  <path fill="#fff" d="M90.9 17.1c-3.9-3.9-10.2-3.9-14.1 0L37.5 56.4 23.2 42.1c-3.9-3.9-10.2-3.9-14.1 0s-3.9 10.2 0 14.1l21.4 21.4c1.9 1.9 4.4 2.9 7.1 2.9s5.1-1 7.1-2.9l46.4-46.4c3.8-3.9 3.8-10.2-.2-14.1z"/>
-</svg>