Fixed spanish translation.

[Deses]

📋 Description

Hi! I just fixed the spanish translation since it looked very machine translated and had many errors.

🚀 Changes made to ...

• 🔧 Server
• 🖥️ Client
• 📚 Documentation
• 🔄 Other: lang ES

✅ Checklist

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have looked for similar pull requests in the repository and found none

🔗 Related Issues

#731

[SeiTaN]

Hi, there.

I also update Spanish translation through Crowdin a weeks ago and I haven't any update from @gnmyt, Maybe I did wrong?

I like your translations, one thing I would change.

To this

This words are literally the same "bajada", "más baja", "subida", "más alta". In my suggest, although is not the word to translate I think it fits better, or even "Máximo" and "Mínimo" by the context.

Thanks, for your time.

[Deses]

You are right. To be honest when I reached that part I was already a bit tired of translating this and I didn't know exactly what to put here since the context is a bit akward, but you're right.

My logic was: Valores de bajada - (Velocidad) Más baja (Velocidad) Más Alta But Peor and Mejor is definitely easier to understand and less verbose.

Other than that the translations were mostly OK, specially the long phrases since machine translation has more to work with but there's a lot of short lines that were completely wrong.

Also no one says "prueba de velocidad", it's all "tests" here. 😂

Flagship Spanish ISP - https://www.movistar.es/test-de-velocidad/
Second biggest ISP - https://www.masmovil.es/test-de-velocidad
Third biggest ISP - https://www.digimobil.es/test-de-velocidad
Random speedtest - https://www.testdevelocidad.es/
Another random - https://www.test-velocidad.com/

Only one I saw using "prueba" was Netflix's Fast.com and they probably just translated it.

[Deses]

uhm... @gnmyt ?