update droptown to take in editable & disapble medical aid fields if not required

Frontend/patient_manager/lib/components/prescipInput.dart

@@ -145,6 +145,7 @@ class _PrescripInputState extends State<PrescripInput> {
             hintText: "Quantity",
             dropdownOptions: numberOptions,
             required: true,
+            editable: true,
           ),
         ),
         const SizedBox(height: 25.0),
@@ -155,6 +156,7 @@ class _PrescripInputState extends State<PrescripInput> {
             hintText: "Dosage",
             dropdownOptions: numberOptions,
             required: true,
+            editable: true,
           ),
         ),
         const SizedBox(height: 25.0),
@@ -165,6 +167,7 @@ class _PrescripInputState extends State<PrescripInput> {
             hintText: "Times Daily",
             dropdownOptions: numberOptions,
             required: true,
+            editable: true,
           ),
         ),
         const SizedBox(height: 25.0),
@@ -175,6 +178,7 @@ class _PrescripInputState extends State<PrescripInput> {
             hintText: "No. Days",
             dropdownOptions: numberOptions,
             required: true,
+            editable: true,
           ),
         ),
         const SizedBox(height: 25.0),
@@ -185,6 +189,7 @@ class _PrescripInputState extends State<PrescripInput> {
             hintText: "No. Repeats",
             dropdownOptions: numberOptions,
             required: true,
+            editable: true,
           ),
         ),
         SizedBox(