fix(cli): inline CSS sourcemaps in addition to JS sourcemaps

[terencehonles]

Description

This change updates the cli copy's --inline handling to also inline the CSS sourcemaps and not just the JS sourcemaps.

reopening: #6526

Change Type

• Fix
• Feature
• Refactor
• Breaking Change
• Documentation

Rationale / Problems Fixed

Allow CSS sourcemaps to be included properly

Tests or Reproductions

Screenshots / Media

Platforms Affected

• Android
• iOS
• Web

Notes / Comments

[jcesarmobile]

I'm considering this a fix instead of feat since the --inline description says

if true, all source maps will be inlined for easier debugging on mobile devices
since it says "all source maps", but it's not doing it for css files, I think it should and doing it is a fix