fix(plugins): Guard against non-array data in pluginsStore.onFetchAllSuccess

[sentry]

This PR addresses a TypeError: data.map is not a function occurring in pluginsStore.tsx within CI/PR environments.

Problem:
The onFetchAllSuccess method in pluginsStore was attempting to call .map() on its data argument. However, due to an incomplete refactoring, data was sometimes a Map object (or another non-array type) instead of the expected array, leading to the TypeError.

Solution:

1. Input Guard: Modified onFetchAllSuccess to include a guard (Array.isArray(data) ? data : []) to ensure data is always an array before .map() is called. This prevents the TypeError when a non-array is passed.
2. State Serialization: Updated triggerState() and getState() methods to serialize the internal this.plugins (which is a Map<string, Plugin>) into a Plugin[] array ([...this.plugins.values()]) when emitting the store's state. This ensures that external consumers, including tests, receive the expected array format for plugins.

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Fixes JEST-26ZP

[github-actions]

📊 Type Coverage Diff

✅ No new type safety issues introduced. Coverage: 93.61%