New Crowdin updates

[SORMAS-Robot]

Summary by CodeRabbit

• New Features
  • Added “Watery diarrhoea” as a trackable symptom across supported locales.
  • Added “Direct microscopy” as a pathogen test type option.
  • Added SHIG as a country/residence label for epidemiological data.
• Localization / UI Text
  • Standardized case lab result captions by replacing MIC/zone/surveillance labels with a single value label (while keeping clinical interpretation).
  • Updated pathogen test quantitative captions by removing the free-text variant in favor of value/unit-style labels.
  • Refined exposure sub-setting wording to “High-contact environments” and “Sexual contact” across translations, including updated Spanish UI text.