Adds employee work schedule component

Introduces a new work schedule feature for managing employee shifts and schedules

Implements interactive schedule view with:
- Week-based schedule grid
- Shift status tracking (work, vacation, sick, off)
- Editable time ranges
- Repeat shift functionality

Enhances employee management with dynamic scheduling capabilities

PlanTempus.Application/Features/Localization/Translations/en.json

@@ -271,11 +271,32 @@
       "tabs": {
         "general": "General",
         "hours": "Working hours",
+        "schedule": "Schedule",
         "services": "Services",
         "salary": "Salary",
         "hr": "HR",
         "stats": "Statistics"
       },
+      "schedule": {
+        "week": "Week",
+        "hours": "hours",
+        "editShift": "Edit shift",
+        "status": "Status",
+        "work": "Work",
+        "off": "Off",
+        "vacation": "Vacation",
+        "sick": "Sick",
+        "timeRange": "Time range",
+        "note": "Note",
+        "type": "Type",
+        "single": "Single",
+        "repeat": "Repeat",
+        "repeatInterval": "Repeat",
+        "repeatEnd": "End date",
+        "weekday": "Weekday",
+        "buttonEdit": "Edit",
+        "buttonDone": "Done"
+      },
       "contact": "Contact information",
       "personal": "Personal information",
       "employment": "Employment",