Simplify non-stacking mechanism

[lantua]

Describe your changes

This PR reduces the previous non-stacking buff mechanism, replacing it with a more (sheet) ergonomic design.

Previously:

const { <buffName> } = allStacks(src)

// Sheets
<buffName>.add(buffCondition),
teamBuff.<target>.add(<buffName>.apply(<buff value>))

Now:

// Sheets
teamBuff.<target>.addOnce(<buff value>, <optional accumulator>, <optional stack name>)

Issue or discord link

https://discord.com/channels/785153694478893126/1189329506842984570/1249871693384650763

Testing/validation

Updated non-stacking buffs in gi-formula

Checklist before requesting a review (leave this PR as draft if any part of this list is not done.)

• [X] I have commented my code in hard-to understand areas.
• [X] I have made corresponding changes to README or wiki.
• [X] For front-end changes, I have updated the corresponding English translations.
• [X] I have run yarn run mini-ci locally to validate format and lint.
• [X] If I have added a new library or app, I have updated the deployment scripts to ignore changes as needed

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