Adds Kasse (Cash Register) module and related components

Introduces comprehensive cash management functionality with multiple view components for tracking daily transactions, filtering, and reconciliation

Implements:
- Cash calculation and difference tracking
- Dynamic tab switching
- Checkbox selection and row expansion
- Date filtering and approval mechanisms

PlanTempus.Application/package.json

@@ -0,0 +1,5 @@
+{
+  "devDependencies": {
+    "esbuild": "^0.27.2"
+  }
+}