Add cooldown feature for reputation actions in FalukantService and update UI components

- Introduced a cooldown mechanism for reputation actions, limiting execution to once per configured interval.
- Updated FalukantService to handle cooldown logic and return remaining cooldown time.
- Enhanced ReputationView component to display cooldown status and prevent action execution during cooldown.
- Added translations for cooldown messages in both German and English locales.

frontend/src/i18n/locales/en/falukant.json

@@ -218,6 +218,7 @@
                 "running": "Running...",
                 "none": "No actions available.",
                 "dailyLimit": "Available today: {remaining} / {cap} reputation (from actions).",
+                "cooldown": "Next social status action available in about {minutes} minutes.",
                 "success": "Action successful! Reputation +{gain}, cost {cost}.",
                 "successSimple": "Action successful!",
                 "type": {