Remove redundant line break from description on F-Droid

[Korb]

Fix

Description: |-
The puzzle consist of three rings, which can be rotated in both directions. The
goal of the puzzle is to solve it as it was in the initial stage.

to

Description: |-
The puzzle consist of three rings, which can be rotated in both directions. The goal of the puzzle is to solve it as it was in the initial stage.

or

Description: |-
The puzzle consist of three rings, which can be rotated in both directions.
The goal of the puzzle is to solve it as it was in the initial stage.