Update Arch Linux package URL in README.md

Spanish translation completed

I was lazy to make the changes in the weblate page, I hope this is not a problem.

question: I am new to github, why am I not listed in the contributors list (just out of curiosity)?

The old URL returns 404 now.

Haiku

This is a bit hacky, because we open a window to actually get a valid
activation token, but...

Before we only did that, when we basically didn't have the key yet. But
since we usually get sent a RoomKey when a new message is sent after we
sign in, we were discarding, that those messages should usually now be
trusted.

Currently translated at 100.0% (1037 of 1037 strings)

Translated using Weblate (Chinese (Simplified))

Currently translated at 100.0% (1037 of 1037 strings)

Co-authored-by: Eric <alchemillatruth@purelymail.com>
Co-authored-by: Integral <integral@murena.io>
Translate-URL: https://weblate.nheko.im/projects/nheko/nheko-master/zh_Hans/
Translation: Nheko/nheko

Spanish translation update

A lot of text translated and improved
In a few days I will translate this again looking for errors and some things I missed.
Enjoy!

Currently translated at 82.4% (855 of 1037 strings)

Co-authored-by: Lurkki14 <jussi.kuokkanen@protonmail.com>
Translate-URL: https://weblate.nheko.im/projects/nheko/nheko-master/fi/
Translation: Nheko/nheko

fixes #1590

Not just when any setting is modified...

fixes #1563