Consistent wording of "Fairteiler"

Description

The wording for "Fairteiler" is not used in the same spelling around the foodsharing-page. Actually there are two versions used in the repo: "Fairteiler" and "Fair-Teiler".

Goal

Achieve a consistent wording on the whole page.

Evidence

Solution

Get knowledge about the official wording. Search the repo for the usage of "FairTeiler", "Fair-Teiler", "Fairteiler" and correct with the "official" naming.

Links / references

!1479 (merged) which already corrected a few findings