feat: Add custom textstyle for the name property in a golden test scenario,…

[NRijnberg]

Description

Add custom textstyle for the name property in a golden test scenario, this is very useful when your default bodyMedium has a white text color, and the background of the golden test is white as well, this way you can make it visible by providing your own text style

Type of Change

• [x] ✨ New feature (non-breaking change which adds functionality)
• [ ] 🛠️ Bug fix (non-breaking change which fixes an issue)
• [ ] ❌ Breaking change (fix or feature that would cause existing functionality to change)
• [ ] 🧹 Code refactor
• [ ] ✅ Build configuration change
• [x] 📝 Documentation
• [ ] 🗑️ Chore

[jeroen-meijer]

@btrautmann @Kirpal I'll leave merging and release up to you. I don't see any issues with this change. 👌🏻

[btrautmann]

@NRijnberg I'm working on getting this unblocked with an upgrade to 3.16.0.

[btrautmann]

@NRijnberg I just merged a PR that bumps the min version for Flutter/dart to a version compatible with your PR, so you should be able to rebase and push. Once that's done/in, I'll be able to merge and cut a new version.

[btrautmann]

I ended up cutting 0.8.0 rather than waiting for this, but feel free to get this back into a good state and we can cut a new version.

[btrautmann]

Closing in favor of https://github.com/Betterment/alchemist/pull/132.