Allow updating background color and font color on custom pages

[taitus]

References

Requirement:

e. We would like to have custom colors for page headers

Objectives

Allow define background color and font color for custom header on custom pages. In addition to background_color and font_color fields, we have also added a new field custom_header_enabled to allow set these fields (page with custom header) or create a custom page without custom header.

Visual Changes

• Admin section:

• Public page with custom header:

Notes

We have to run this task after uploading to production: rake site_customization_pages:update_color_fields_values_from_deploy_yml

This will update the background color and text color for the custom pages. The values for this task have been copied from the definition of the deploy.yml file.

[javierm]

@decembrya Could you review the texts we've added in Romanian? Thanks! :pray:

[decembrya]

Translations look good 👍