Before, the product selection dropdown did not display the
time of the previous order and products were not sorted based on how
recently they were invoiced for the selected customer. Additionally,
the last invoice time and specific quantity calculations were missing
from the catalog view.

This module enhances the product selection mechanism to assist users in
identifying frequently purchased items. Specific improvements include:
- Displaying the `last_order` time next to the product name in the
  dropdown.
- Sorting products by `last_invoice_date` specific to the selected
  customer (partner).
- Showing `final_qty` and `last_invoice_time` in the product
  catalog kanban view.

If no customer is selected in the context, the standard selection
behavior and sorting apply.

Technical Details:
- Model `product.product`: Added `last_order` Datetime field,
   `last_invoice_date` Datetime Field, `last_invoice_time` field.
- Model `product.template`: Added `last_order` Datetime field,
   `last_invoice_date` Datetime Field.
- Method `name_search`: Overridden to order products as `last_invoice_date`.
- Method `_compute_display_name`: Overridden to show `last_order` as to string
   time at right side of product name in selection dropdown.
- Method `_compute_last_order`: to compute `last_order` of shown products in
   selection dropdown in context of selected customer(`partner_id`).
- Method `_compute_last_invoice_date`: to compute `last_invoice_date` to order
   recently invoiced first shown products in selection dropdown in context of
   selected customer(`partner_id`).
- Method `compute_agotime`: to compute given Datetime to string format.

- View `sale_order_views`: Updated `product_template_id` and catalog button
   to pass the selected `partner_id` in the context as `customer`.
- View `account_move_views`: Updated `product_id` and catalog button
   to pass the selected `partner_id` in the context as `customer`.
- View `purchase_order_views`: Updated `product_id` to pass the selected
  `partner_id` in the context as `vendor`.
- View `product_views`: Updated `product_view_kanban_catalog` to display
  `final_qty` (`virtual_available` - `qty_available`) next to `On Hand` and
  `last_invoice_time` after `qty_available` in `product_view_kanban_catalog`.

- Template `order_line`: Updated to show `uomDisplayName` next to `price`.

…ting logic

This commit introduces the `TestLastOrderProduct` test suite to ensure the
stability of product sorting and time computation based on sales and
purchase history.

Key scenarios covered:

Last Order Computation:
   - Verifies that confirming a Sale Order updates the `last_order` field.
   - Checks that the 'Ago' time suffix (e.g., '--1h--') is correctly
     appended to `display_name` when the context is active.

Last Invoice Date:
   - Verifies that posting a Customer Invoice updates `last_invoice_date`.
   - Ensures valid date comparisons between fields.

Vendor Bill Sorting:
   - Verifies that posting a Vendor Bill updates `last_invoice_date`
     when in a vendor context.
   - Ensures products from recent bills appear at the top of search results.

Name Search Sorting:
   - Verifies that recently invoiced products appear at the top of the
     list in the `name_search` results.
   - Confirms that sorting falls back to the default (alphabetical)
     when no customer/vendor context is provided.

Time Display Logic:
   - Validates `last_invoice_time` computation.
   - Specifically verifies that invoices created less than a minute ago
     return 'Just Now'.

Context Handling:
   - Ensures logic only triggers when `customer`, `vendor`, or
     `formatted_display_name` keys are present in the context, preventing
     unwanted side effects in standard views.