Add reverse sort options for Docker resources

[AryanBagade]

Summary

Adds reverse sort options for Docker resources as suggested by @bwateratmsft in #317.
New sort options added:

• CreatedTimeReverse - Sort by oldest first
• LabelReverse - Sort reverse alphabetically (Z → A)
• SizeReverse - Sort by smallest first (images only)

Views updated:

• Containers
• Images
• Networks
• Volumes

Changes

• Updated CommonProperties.ts with new sort types and descriptions
• Updated LocalRootTreeItemBase.ts with sorting logic for reverse options
• Updated ImagesTreeItem.ts with SizeReverse option
• Updated package.json with new enum values for all sortBy settings
• Updated package.nls.json with updated descriptions

Test Plan

• Build passes
• Lint passes (0 warnings)
• All 130 existing tests pass

Fixes #317

[bwateratmsft]

Looks good to me! I'll test it out and we'll try to merge it for 2.4.0.