Update Spanish translations and contributors

[TheRealPlex]

Added additional contributors to the Spanish translation and updated several translations for clarity and accuracy.

[carpikes]

Hi, there are some issues with this translation: there should not be multiple lines with the same sentence.
Instead of adding new lines with the translation, you should put the translated text into the quotes after :.
For example, wrong way:

    "(Dualsense) Will updating the firmware reset calibration?": "",
    "(Dualsense) Will updating the firmware reset calibration?": "(Dualsense) ¿La actualización del firmware restablecerá la calibración?",

Correct Way:

"(Dualsense) Will updating the firmware reset calibration?": "(Dualsense) ¿La actualización del firmware restablecerá la calibración?"