Project update pages now show the number of helpdesk tickets linked to the project, matching the visibility already available on the project form. This gives teams a quicker way to understand support activity connected to a project without switching screens.

[IMP] helpdesk_timesheet: add project update stat button 

With this PR, we are copying 1 stat button from the project
view form (number of tickets linked to the project) and we add it
to the project update page.

See task-2638359
See PR: odoo/odoo#76099

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This update improves performance in several Odoo Enterprise apps by reducing unnecessary database searches and using cached model information where possible. Users should see slightly smoother responses in affected areas such as accounting reports, documents, helpdesk, VoIP, website, and Studio, with no change to workflows.

https://github.com/odoo/enterprise/pull/20629 was broken

This update improves performance in several Odoo apps by using cached internal model information and more efficient counting methods. Users should see the same behavior, with reduced database work behind the scenes in areas such as Helpdesk, Documents, VoIP, Web Studio, and reporting.

Several business screens now use more consistent icons so each symbol represents a clearer concept, such as shopping carts for ecommerce and credit cards for purchases. This makes navigation and visual cues easier to understand across approvals, payroll, Amazon sales, subscriptions, and social sales features.

*: hr_payroll,sale_amazon,sale_subscription,social_sale

BEFORE THIS COMMIT

fa-shopping-cart was used for different purchase-related contexts.
This icon should only be used for online shopping / ecommerce.

AFTER THIS COMMIT

Wa make sure one icon is used for one concept.
- fa-shopping-cart : ecommerce / add to cart
- fa-credit-card : purchases
- fa-credit-card-alt : replaces other uses of fa-credit-card

Icons are updated accordingly. Other icons are also changed to
increase readablity.

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Task Id - 2593306