Fix vercel build

[nighca]

Fix vercel build error when configured with NODE_ENV=production

[16:04:32.020] > spx-gui@0.0.0 build
[16:04:32.020] > vue-tsc --build --force && vite build --mode ${NODE_ENV:-production}
[16:04:32.020] 
[16:04:32.025] sh: line 1: vue-tsc: command not found
[16:04:32.035] Error: Command "export PATH=$PATH:/usr/local/go/bin && sh build-wasm.sh && npm run build" exited with 127

Distingushment between dependencies & devDependencies is meant for server development with Node.js, while makes no sense for frontend application.

We can consider build tools for frontend application as dependencies instead of devDependencies, as the latter will not be installed when running npm install with NODE_ENV=production:

With the --production flag (or when the NODE_ENV environment variable is set to production), npm will not install modules listed in devDependencies.

[qiniu-prow]

Skipping CI for Draft Pull Request.
If you want CI signal for your change, please convert it to an actual PR.
You can still manually trigger a test run with /test all

[qiniu-ci]

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