Minor fixes in employee listing and menus

<SRS> SRS02 : Employee Management </SRS>

<Changes>
- Sorted active employees by ID when listing
- Handled empty employee lists in menus
- Stopped deactivation when no employee is selected
- Showed "NULL" when team ID is missing
- Removed unnecessary error throw in payroll menu
</Changes>

<Review>
Smitha Mohan
</Review>

Trenser.Zenvy/Trenser.Zenvy/views/FinanceExecutiveMenu.cpp

@@ -49,9 +49,6 @@ void FinanceExecutiveMenu::updatePayroll()
 		std::cout << "Payroll Updated";
 		util::pressEnter();
 	}
-	else {
-		throw std::runtime_error("Unexpected error occured");
-	}
 }
 
 bool FinanceExecutiveMenu::handleOperation(int choice)

Trenser.Zenvy/Trenser.Zenvy/views/MenuHelper.h

@@ -72,6 +72,12 @@ inline std::string selectEmployeeId(std::vector<std::shared_ptr<const Employee>>
     std::map<int, std::shared_ptr<const Employee>> employeeList;
     int index = 0;
     util::clear();
+    if (allEmployees.empty())
+    {
+        std::cout << "No employees found!";
+        util::pressEnter();
+        return "";
+    }
     std::cout << "Select the Employee\n";
     for (auto& currentEmployee : allEmployees)
     {
@@ -109,16 +115,21 @@ inline std::string selectEmployeeId(std::vector<std::shared_ptr<const Employee>>
 
 inline void deactivateEmployee(const std::shared_ptr<ZenvyController>& controller)
 {
-        if(controller->deactivateEmployee(selectEmployeeId(controller->getEmployees())))
-        {
-            std::cout << "Employee deactivated successfully\n";
-            util::pressEnter();
-        }
-        else
-        {
-            std::cout << "Employee not found\n";
-            util::pressEnter();
-        }
+    std::string selectedEmployeeId = selectEmployeeId(controller->getEmployees());
+    if (selectedEmployeeId.empty())
+    {
+        return;
+    }
+    if(controller->deactivateEmployee(selectedEmployeeId))
+    {
+        std::cout << "Employee deactivated successfully\n";
+        util::pressEnter();
+    }
+    else
+    {
+        std::cout << "Employee not found\n";
+        util::pressEnter();
+    }
 }
 
 inline void viewEmployees(std::shared_ptr<ZenvyController> m_zenvyController)
@@ -148,7 +159,7 @@ inline void viewEmployees(std::shared_ptr<ZenvyController> m_zenvyController)
             << std::setw(25) << Enums::getEmployeeTypeString(iterator->getEmployeeType())
             << std::setw(25) << iterator->getEmployeeEmail()
             << std::setw(15) << iterator->getEmployeePhone()
-            << std::setw(10) << iterator->getEmployeeTeamId()
+            << std::setw(10) << (iterator->getEmployeeTeamId().empty() ? "NULL" : iterator->getEmployeeTeamId())
             << std::endl;
     }
     util::pressEnter();