[IMP] base: Configure document layout

The onboarding modal for setting up the few base fields of a company
has now been moved to a wizard
It is accessible from the general settings, but also in the onboarding
section of sale and account modules.

The following company settings are editable with that wizard:

- Set report **layout**:
The user can chose the overall look of the report. The current choices
are : *Standard* (default), *Background*, *Boxed* and *Clean*.

- Set company **logo**:
Changes the company logo.

- Set report **colors**:
The user can set the primary and secondary colors of the report through
a newly added widget allowing to pick a custom color.
When changing the **logo**, colors are automatically set to its most dominant
colors.
> A "Reset colors" button also triggers the color calculation.

- Set report **font**:
Changes the overall font of the report. Only Google Fonts are used
for enhanced compatibility.

- Company **tagline**, also called "header"
- **Footer**
- **Paper format**
- Report **preview**:
A mockup of a final report
Automatically updates when changing **layout**, **logo**, **colors** or **font**

Co-authored by: Julien Mougenot <jum@odoo.com>

closes odoo/odoo#33863

Signed-off-by: VincentSchippefilt <VincentSchippefilt@users.noreply.github.com>


Co-authored-by: Lucas Perais <lpe@odoo.com>