This update tidies short app summaries and longer descriptions across multiple Odoo Enterprise modules by removing line breaks and unnecessary spacing. It improves consistency in how module information is stored and displayed, with no expected change to business workflows.

The summary is a short char field. It should not contain carriage returns.
The description is the longer text field.
Remove unnecessary spaces in both.

Enterprise part of odoo/odoo#138214

The calendar setting previously called quick add has been renamed to quick create across several Odoo apps. This is a low-impact consistency update that helps keep terminology aligned without changing business workflows.

This commit renames calendar's attribute quick_add to quick_create to be more consistent with other views.

The spreadsheet global filter side panel now uses a standard Bootstrap expand-and-collapse behavior instead of a custom animation. This should make the panel feel more consistent and reliable for users while reducing maintenance complexity.

This commit replaces the custom collapsible effect for the global filter side panel with the bootstrap collapsible effect.

The Sign app now loads its signature drawing component only when it is needed instead of including it upfront. This reduces unnecessary loading for users and helps keep the signing experience more efficient.