fix(examples): tanstack-start build issues

[depsimon]

Description

Fix some issues with the tanstack-start example when building the example app

Types of changes

• Examples update

Checklist

• I have read the CONTRIBUTING and CODE_OF_CONDUCT docs
• I have added tests that prove my fix is effective or that my feature works
• I have added the necessary documentation (if appropriate)

[vercel]

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Name	Status	Preview	Updated (UTC)
js-lingui	✅ Ready (Inspect)	Visit Preview	May 11, 2025 10:11am

[github-actions]

size-limit report 📦

Path	Size
packages/core/dist/index.mjs	2.91 KB (0%)
packages/detect-locale/dist/index.mjs	618 B (0%)
packages/react/dist/index.mjs	1.35 KB (0%)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 76.72%. Comparing base (6bb8983) to head (be634fa).
Report is 189 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2248      +/-   ##
==========================================
- Coverage   77.05%   76.72%   -0.33%     
==========================================
  Files          84       88       +4     
  Lines        2157     2488     +331     
  Branches      555      648      +93     
==========================================
+ Hits         1662     1909     +247     
- Misses        382      463      +81     
- Partials      113      116       +3     

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[andrii-bodnar]

@depsimon thank you!