FEAT: Improve 'omni'search

- Partialised template
- Added to assets header
- Added ability to search assets/suppliers
- Improved selection logic
- Have it display current query

assets/templates/base_assets.html

@@ -40,5 +40,6 @@
 {% endblock %}
 
 {% block titleelements_right %}
+{% include 'partials/search.html' %}
 {% include 'partials/navbar_user.html' %}
 {% endblock %}