Fixed #15820 - added model number to view-assets

[snipe]

Adds Model number to the Account > View Assets screen.

Fixes #15820

[what-the-diff]

PR Summary

• Removal of User's Name from Assets View
  In this update, we have removed the box heading showcasing the user's name in the assets view, providing a cleaner interface.

• Addition of Model Number Column
  We added a new feature to the assets table by incorporating a column specifically designed to display the model number of each asset.

• Adjustment in Display Condition for Model Name
  We've altered the rules for displaying the model name. Now, irrespective of the physical status of the asset, the model name will always be on display.

• Removal of Unnecessary closing Div
  A certain closing div for .box-body was deemed unnecessary, so it has been eliminated, contributing to a cleaner codebase.