Reduce oversized frontend production bundles

[Mosas2000]

The frontend production build succeeds, but Vite reports a large chunk warning during npm run build.

Observed build output:

• dist/assets/index-qPcZeuNH.js is about 691.64 kB before gzip.
• Vite warns that some chunks are larger than 600 kB after minification.

Why this matters:

• Large initial bundles increase load time and make the app feel heavier than it needs to be.
• This is especially noticeable for first-time visitors and demo users.

Expected result:

• The frontend should be split so the main chunks stay below the warning threshold, or the bundle should be intentionally justified and documented.

Possible follow-up areas:

• Review shared dependencies pulled into the main entry chunk.
• Add or adjust code splitting for heavier routes and wallet-related modules.
• Consider manual chunking if the current automatic split is not sufficient.