🤖 Fix TypeError in groupStore.tsx

[seer-by-sentry]

👋 Hi there! This PR was automatically generated 🤖

Triggered by Jenn Mueng

Fixes JAVASCRIPT-2QYK

The function mergeItems in groupStore.tsx is causing a TypeError when attempting to read the 'id' property of null. This indicates that the items array passed to mergeItems may contain null values or items without an 'id' property. To resolve this issue, we need to filter out such items before attempting to access their 'id' property.

The steps that were performed:

1. Filter out null and undefined items in mergeItems

📣 Instructions for the reviewer which is you, yes you:

• If these changes were incorrect, please close this PR and comment explaining why.
• If these changes were incomplete, please continue working on this PR then merge it.
• If you are feeling confident in my changes, please merge this PR.

This will greatly help us improve the autofix system. Thank you! 🙏

If there are any questions, please reach out to the AI/ML Team on #proj-autofix

🤓 Stats for the nerds:

Prompt tokens: 13158
Completion tokens: 625
Total tokens: 13783

[JonasBa]

This can be done in a single pass. Old code is also On^2 due to acc spread

Suggested change

	.filter(item => item && item.id)
	.reduce((acc, item) => ({...acc, [item.id]: item}), {});
	.reduce((acc, item) =>
	if(!item) return acc;
	acc[item.id] = item;
	return acc;
	), {});

[getsantry]

This pull request has gone three weeks without activity. In another week, I will close it.

But! If you comment or otherwise update it, I will reset the clock, and if you add the label WIP, I will leave it alone unless WIP is removed ... forever!

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"A weed is but an unloved flower." ― Ella Wheeler Wilcox 🥀