Translations update from Translate H5P

[translate-h5p]

Translations update from Translate H5P for H5P/h5p-game-map.

Current translation status:

[otacke]

@translate-h5p This contribution has a number of issues:

• Labels of groups are moved to the bottom. No breaking issue, but I wonder why?
• There are some extra fields that I cannot explain, for instance:

  h5p-game-map/language/lt.json

  Line 439 in ff16d2a

  "description": "@minScore is a placeholder and will be replaced with the respective value."

  which does not belong here or

  h5p-game-map/language/lt.json

  Lines 493 to 500 in ff16d2a

  	{
  	"default": "No background image was set for the map.",
  	"label": "No background image was set"
  	},
  	{
  	"label": "No stages were set",
  	"default": "No valid stages were set for the map."
  	}

  which are duplicates of the two lines above
• The original translation received new fields that do not have to been added to the pull-request even though translate-h5p.tk received the update via webhook before the pull-request was created. Missing commits somewhere?