The mini UI on the frontend as a connected backend user was a bit
confusing: the "Edit" button used the exact same design and wording as
the "Edit" button in the backend but it had not the same effect as it
did not enter edit mode but just redirected the user to the website
preview (client action iframe).
We still want the same behavior, we just needed another button design:
- Change the label from "Edit" to "Editor".
- Change the "pencil" fa icon with the website app icon (same as app
switcher in enterprise).
- Use a dark color instead of the primary color. This reuses a dark
color of the website edit mode.
closesodoo/odoo#100355
Signed-off-by: Romain Derie (rde) <rde@odoo.com>