Users who open the Odoo web app without a connection to their Odoo server now see a clear offline screen instead of a failed page load. This improves the experience for progressive web app users by explaining the connection problem gracefully, without changing the existing in-app connection drop notifications.

This commit introduces a way to notify the user that he's "offline"
(aka. cannot reach it's Odoo server) and that Odoo doesn't work in a
graceful way in this circumstance.

To do so, the Service-Worker will return the response of the
´web/offline´ route, which is cached at its setup.

Note: this screen is only show when launched while "offline" and fails
to load the requested page. It does not "interrupt" the WebClient to
show this screen when the connection drops off (cf. not a replacement
for the existing notification).

Task ID: 3203639

This update refreshes and aligns app icons across several Odoo apps and localization modules, reducing inconsistencies between icon formats. Business users should see more consistent app branding and cleaner module presentation, with no expected workflow changes.

New trials for HR apps are now cleaner and better prepared when started without demo data. This helps businesses begin configuring appraisal, payroll, recruitment, and referral workflows with less cleanup and a more production-ready starting point.

PURPOSE
=======

When you start a new trial of an app without demo data, you want to have everything perfect and ready for your own configuration

TaskID: 3328654

The employee view is easier to use with a weekly timesheet shortcut, more flexible list display options, and corrected Belgian payroll attestation year information. Demo employee imagery was also cleaned up so updated profile pictures can appear correctly.

… the employee view

This PR adds several UX improvements :
- Timesheet smartbutton : Get weekly view instead of daily
- Attestation (N) : Fix displayed year
- Remove demo profile picture for Marc Demo to allow the new one
- Employee tree view : Allow more flexibility in terms of what you can show and hide on the tree view 

task - 3299145

Recruiters can now refuse candidates through a dedicated server action, making it easier to handle unsuitable applications consistently. This streamlines recruitment operations and helps keep applicant statuses up to date across related referral records.

see odoo/odoo#119071

Several Helpdesk-related workflows now open medium-sized pop-up dialogs instead of large ones. This makes common wizard screens feel less oversized and easier to use without changing the underlying business process.

Reduce the size of the wizard dialog in helpdesk and timesheet app

In this commit, in this commit, We have changed the size of wizard
dialog to medium instead of large.

task-3259212

The payroll apps no longer rely on a separate paid field on payslips. This streamlines payroll screens and related accounting/localization views, reducing redundant status information for users.

task - 3275256