Update Finnish terms and translations

[ziplantil]

Updates Finnish translations and terms for Obsidian.

Notes:

• Were some of the new translations machine translated?
  • They also inflect the word "Obsidian", which I was previously told to not do. Has this requirement changed?
• How could I get the translations included in the packaged versions of Obsidian (such as on mobile)? In my opinion, the Finnish translation is pretty complete.

[lishid]

Thanks! You are correct that we should always keep "Obsidian" as it is, without translating it. We did run some automated translations, and if any of it is mistaken, we'd appreciate if you can fix it.

[ziplantil]

There are no translations (or inflections) of Obsidian in my current version in this PR.

[lishid]

How could I get the translations included in the packaged versions of Obsidian (such as on mobile)? In my opinion, the Finnish translation is pretty complete.

This language is now shipped in Obsidian starting in v1.12.0. Your changes will go into v1.12.2.