Enable unicorn/no-null ESLint rule

[codykaup]

Simply enables our unicorn/no-null ESLint rule and fixes any errors that appear.

📦 Published PR as canary version: 11.11.1--canary.1057.11113601710.0

✨ Test out this PR locally via:

npm install chromatic@11.11.1--canary.1057.11113601710.0
# or 
yarn add chromatic@11.11.1--canary.1057.11113601710.0

[codacy-production]

Coverage summary from Codacy

See diff coverage on Codacy

Coverage variation	Diff coverage
✅ +0.00% (target: -1.00%)	❌ 63.64% (target: 80.00%)

Coverage variation details

	Coverable lines	Covered lines	Coverage
Common ancestor commit (cce85f1)	8348	4485	53.73%
Head commit (3d61a79)	8348 (+0)	4485 (+0)	53.73% (+0.00%)

Coverage variation is the difference between the coverage for the head and common ancestor commits of the pull request branch: <coverage of head commit> - <coverage of common ancestor commit>

Diff coverage details

	Coverable lines	Covered lines	Diff coverage
Pull request (#1057)	33	21	63.64%

Diff coverage is the percentage of lines that are covered by tests out of the coverable lines that the pull request added or modified: <covered lines added or modified>/<coverable lines added or modified> * 100%

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_{Codacy stopped sending the deprecated coverage status on June 5th, 2024. Learn more}

[github-actions]

📦 Package Size: 4180 KB
✅ Compared to main: 0 KB cce85f1 (4180 KB)

[ghengeveld]

🚀 PR was released in v11.11.0 🚀