Add container scanning to dropdown

* Add container scanning constant
* Add container scanning translation

Add changelog

* Add changelog entry for container scanning

Enable container scanning results in backend

* Enable feature via feature flag

Sort filter names and fix text overflow

* Sort security group dashboard filters in alphabetical order
* Fix x + more overflow styling problems

Refactor filter dropdown truncation logic

* In the vuln filter component dropdown re-work to use slots

Restore filter dropdown chevron

* restore filter dropdown chevron in slot

Remove uneeded tranlation

* Remove use of sprintf and __()
* Regenerate pot files

Remove need for sortBy, re-order manually

* Reorder object properties in REPORT_TYPES
* Tweak dropdown markup to allow for better alignment

Make code review adjustments

* Simplify usage of ternary operator in filter getter
* Conditionally show span if we have content