This module provides managing real estate advertisements.

It introduces the \`estate.property\` model with fields for:
- Property descriptions (name, description, postcode, etc.)
- Pricing (expected and selling price)
- Physical characteristics (bedrooms, living area, facades)
- Garden information (area and orientation)

adds the initial UI for the estate module:
- Add action and menus in XML files.
- Add new fields and modify the existing fields.
- Update manifest to include the new XML files.

Adds multiple ui views (list, form, search)
1) adding missing EOLs
2) updating fields in estate.property model

- Define 'estate.property.offer' and 'estate.property.tag' and 'estate.property.type' models.
- Add One2many relationship for offers and Many2many for tags, types on properties.
- Update property views with a notebook containing 'Offers' and 'Other Info' tabs.
- Add 'salesman' and 'buyer' fields to properties other info's section.

- Implement 'total_area' and 'best_price' computed fields on estate.property.
- Add 'validity' and 'deadline_date' to estate.property.offer with compute and inverse logic.
- Add an onchange for the 'garden' field to update garden area and orientation automatically.
- Fix deletion error when deleting a property by adding 'ondelete="cascade"' to 'property_id' in the estate.property.offer model.

…e' on offers

- Add the buttons ‘Cancel’ and ‘Sold’ to the estate.property
- Add the buttons ‘Accept’ and ‘Refuse’ to the estate.property.offer
- set the buyer and the selling price for the property when offer is accepted

- Add SQL constraints for `estate.property` selling price and expected price
- Add SQL constraints for `estate.property.offer` price
- Add SQL constraints for the uniqueness of `estate.property.tag` and `estate.property.type` names
- Add Python constraints for checking if the selling_price is at least 90% of the expected price

- Add 'offer_count' stat button and notebook list to Property Types form.
- Enhance property list view with status-based decorations (success, muted, bold).
- Create dedicated 'Property Offers' view and configuration menu.
- Add visibility tokens (invisible) and statusbar widget for better form flow.
- Support tag coloring (Many2many) and 'Available' default search filter.

- Add option for users to view assigned properties
- Add constraints to make new offers only with price higher than other existing ones
- Inherit from `res.user` form view to add assigned properties page
- Delete property shouldn't work on 'sold' or 'cancelled' properties

…e modules

- Add a new module `estate.account` to be able to create invoices when selling a property