Flash Cards v1.1.5

This release updates the widget to MWDK 3.0 and its associated dependencies, adds accessibility metadata to the install.yaml, and implements very minor style updates to the player.

What's Changed

• Issue/mwdk upgrade by @cayb0rg in #32
• Update install.yaml by @cayb0rg in #31

Full Changelog: v1.1.4...v1.1.5