feat(modern): auto detect modern mode

[clarkdo]

Types of changes

• Bug fix (a non-breaking change which fixes an issue)
• New feature (a non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Description

If user doesn't specify modern in command and nuxt.config.js, a middleware will detect by if there is modern built asset in dist:

1. ssr: server
2. spa: client
3. no modern assets: false

Checklist:

• My change requires a change to the documentation.
• I have updated the documentation accordingly. (PR: #)
• I have added tests to cover my changes (if not applicable, please state why)
• All new and existing tests are passing.

[codecov-io]

Codecov Report

Merging #4422 into dev will increase coverage by 0.05%.
The diff coverage is 100%.

@@            Coverage Diff            @@
##              dev   #4422      +/-   ##
=========================================
+ Coverage   91.35%   91.4%   +0.05%     
=========================================
  Files          56      56              
  Lines        1931    1943      +12     
  Branches      483     485       +2     
=========================================
+ Hits         1764    1776      +12     
  Misses        155     155              
  Partials       12      12

Impacted Files	Coverage Δ
packages/config/src/config/_common.js	100% <ø> (ø)	⬆️
packages/config/src/options.js	94.81% <ø> (-0.08%)	⬇️
packages/server/src/middleware/modern.js	100% <100%> (ø)	⬆️
packages/vue-renderer/src/renderer.js	100% <100%> (ø)	⬆️
packages/server/src/server.js	100% <100%> (ø)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 8cc954d...de39503. Read the comment docs.

[clarkdo]

Resolve #4356

[lock]

This thread has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.