closes https://github.com/TryGhost/Team/issues/535
To ensure accent color is always set for a site, this updates brand settings screen and launch wizard to not allow empty accent color to be set or updated, adding the relevant error on the page which needs to be fixed before saving or continuing on the screens.
- Shows error message for empty accent color on brand settings and launch wizard
- Shows error message for invalid accent color on brand settings and launch wizard
- Blocks save and continue with invalid/empty accent color on brand settings and launch wizard
Co-authored-by: Peter Zimon <zimo@ghost.org>
closes https://github.com/TryGhost/Team/issues/506
- launch wizard and brand settings both shared the same design and behaviour for customising brand settings but used duplicated code that had diverged
- extracted the more up-to-date behaviour from the launch wizard into a component
- updated brand settings and launch wizard to use the new component
changes to brand settings modal behaviour:
- preview is no longer interactive
- switches to using iframe contents replacement instead of `postMessage`
