Fetch allows null in team input

[Prismarelign]

Describe the content or mechanics you are proposing.

If fetch's team input is null, fetch will get data from all teams. Similar to how fetch's unit inputs works in BE.

Describe how you think this content will improve the game. If you're proposing new content, mention how it may add more gameplay options or how it will fill a new niche.

Better quality of life for the fetch instruction.

Before making this issue, check the boxes below to confirm that you have acknowledged them.

• [X] I have checked the Trello to make sure my suggestion isn't planned or implemented in a development version.
• [X] I am familiar with all the content already in the game or have glanced at the wiki to make sure my suggestion doesn't exist in the game yet.
• [X] I have read README.md to make sure my idea is not listed under the "A few things you shouldn't suggest" category.

[github-actions[bot]]

This suggestion is now stale, and will be automatically closed.