Website editors can now choose different connector styles and colors for the process steps snippet. This gives business users more control over page design and helps align website sections with brand visuals without custom development.

Allow to choose different connectors for the steps snippet
Allow to change the color of the connectors

The Contact Us page is now built as a static page with fixed company information and no embedded Google map. This makes the page easier to install and maintain while keeping the contact form available through the website form module.

Task : https://tinyurl.com/3ydtkjbw
This PR is linked to : https://github.com/odoo/upgrade/pull/2398

Currently, contactus page is dynamic (Google map snippet, Company Data, Contact Form), in order to make it static : 
- Company data snippet have been removed and replace by static data
- Google map snippet have been removed
- Contact us page is now created by the website_form module (since website_form needs to add data to contactus page in order for the form to work) and there is no more override of the contactus page (website_crm)

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Users tabbing out of an empty lookup field will no longer automatically select the first suggested record. This reduces accidental data entry and keeps records unchanged unless the user typed or actively chose an option.

PURPOSE
When tabbing out of a focus m2x field, the 'most likely record' is set > this is a good thing
problem is, we only want to do that if the user actually wrote something

SPEC
Only set the first value of the dropdown is the user wrote at least one character

TASK 2455781




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This update streamlines how Odoo shows notifications in several apps, making messages more consistent for users. It is mainly an internal cleanup that should improve maintainability while preserving existing behavior.

task-2476867

Approval requests now show a helpful placeholder for location information, making the form clearer for users. A visual issue in enterprise forms was also fixed so the first visible tab displays its left border correctly, even when earlier tabs are hidden.

This update standardizes how notifications are handled across many Odoo apps, making messages more consistent for users and easier for teams to maintain. It affects areas such as accounting, documents, barcode workflows, field service, IoT, helpdesk, events, signing, and social integrations without introducing a major visible feature change.

task-2476867

Payroll structures now use simpler internal codes instead of repeated lookups, reducing database requests and improving payslip calculation performance. The update also refines Belgian payroll behavior, including social certificate generation, public holiday handling, fleet eligibility by company, and safeguards for detached employees.

Instead of doing self.env.ref('module.my_structure') in a lot of places,
compare the code instead. This greatly reduces the number of SQL requests,
as you can see on the performances tests that are adapted in this commit.

The social media apps now use the updated Odoo service addresses required by the In-App Purchase platform. This keeps Facebook, LinkedIn, Twitter, and other social integrations aligned with the latest backend routing guidelines, helping maintain reliable connectivity.

Our In App Purchase servers introduced new guidelines concerning endpoints.

All social endpoints should now reach social.api.odoo.com and the endpoints
should match the syntax: /api/social/$proxy_name/$v/<endpoint>.

This commit applies these new guidelines across our social apps.

Task-2520594