Fix lint errors and warnings

[wojtekn]

Related issues

• N/A

How AI was used in this PR

I made changes manually.

Proposed Changes

• I propose fixing lint errors and warnings.

Testing Instructions

• Confirm builds go through.

Pre-merge Checklist

• Have you checked for TypeScript, React or other console errors?

[wpmobilebot]

📊 Performance Test Results

Comparing af83279 vs trunk

app-size

Metric	trunk	af83279	Diff	Change
App Size (Mac)	1236.40 MB	1236.40 MB	0.00 MB	⚪ 0.0%

site-editor

Metric	trunk	af83279	Diff	Change
load	2021 ms	1960 ms	61 ms	🟢 -3.0%

site-startup

Metric	trunk	af83279	Diff	Change
siteCreation	7085 ms	7112 ms	+27 ms	⚪ 0.0%
siteStartup	3931 ms	3926 ms	5 ms	⚪ 0.0%

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Results are median values from multiple test runs.

Legend: 🟢 Improvement (faster) | 🔴 Regression (slower) | ⚪ No change (<50ms diff)