The spreadsheet global filters editor was reorganized to manage its screen state in a central store. This is an internal cleanup that should make the editor easier to maintain and prepare it for future improvements, without changing the expected user workflow.

This commit simplifies the global filters editors by using a store to manage the state of the editor.

Task: 4589753

This update cleans up parts of Odoo's messaging system ahead of a major release. It removes duplicate mobile notification logic so muted chat channels are handled consistently and users are less likely to receive unwanted notifications.

This update reorganizes internal WhatsApp messaging logic so it sits in the modules where it is most relevant. It also centralizes timezone handling, reducing duplicate code and making future maintenance safer without changing the user experience.