Outdated version on the Snap Store stable channel.

The version of Flameshot available on the stable channel is absurdly outdated, and the snap content required for this version cannot even be found, which prevents its installation and consequently makes it seem like the Snap Store is buggy.

This is what appears when trying to install Flameshot from the stable channel:

error: cannot perform the following tasks:
- Ensure prerequisites for "flameshot" are available (cannot install prerequisite "kde-frameworks-5-91-qt-5-15-3-core20": no snap revision available as specified)