MTG content removal and overhauling part 1

[grorp]

resolves part of #80

• overhauled the "Mapgen" page to be more useful/informative, and to remove the "Luanti == Minetest Game" assumption
  • also updated some other outdated stuff, like "advanced settings menu"
  • removed references to MTG nodes (there are still node name references, but they're meant to refer to node aliases / biome nodes, not to specific MTG nodes)
• moved the "Custom Lua Mapgen" page into the "Mapgen" category
• removed pages where consensus apparently exists

[rollerozxa]

The overhaul of the Mapgen page looks good when reading it through, and 👍 on the removal and move of the respective pages

[mark-wiemer]

Is this the right way to format links? Can't we just do:

Suggested change

	[](/images/mapgen/Mapgen_v5.jpg)
	

I guess the original way of doing things allows users to click on the image to be taken to the image on its own, but I'm not sure.

Not a blocker from me though, feel free to merge

[rollerozxa]

I believe this is just a bit of a blemish from the way wikitext gets converted to markdown. I'm unsure what we should decide upon, if we want clickable links then this should be done in a way that can be reusable across all images on the site (and that can include captions, floating them to the right and such like the MediaWiki image functionality).

[grorp]

Yeah, the image is nested in a link so you can click it to open. This is also done on other pages. I think it would make sense to adjust the template so that all images get links to open them, and then remove those from the markdown source.

In this PR, I think they should stay since they're useful.

[JosiahWI]

Good cleanup. I just have some punctuation and wordsmithing requests.