Update mybutton widget to take in buttonColor & TextColour. Add Success message pop up message.

Update all buttons to include button color and text colors.

Frontend/patient_manager/lib/components/mySuccessMessage.dart

@@ -0,0 +1,98 @@
+import 'package:flutter/material.dart';
+import 'package:patient_manager/components/mybutton.dart';
+
+class MySuccessMessage extends StatefulWidget {
+  final String successType;
+  final String successMessage;
+  const MySuccessMessage({
+    super.key,
+    required this.successType,
+    required this.successMessage,
+  });
+
+  @override
+  State<MySuccessMessage> createState() => _MySuccessMessageState();
+}
+
+class _MySuccessMessageState extends State<MySuccessMessage> {
+  var messageTypes = <String, Widget>{};
+  late String message;
+
+  void setSuccessmessage() {
+    messageTypes["Success"] = Stack(
+      children: [
+        Container(
+          padding: const EdgeInsets.all(10.0),
+          width: 500.0,
+          // height: 375.0,
+          decoration: BoxDecoration(
+            color: Colors.white,
+            borderRadius: BorderRadius.circular(25.0),
+            border: Border.all(color: Colors.green, width: 5.0),
+          ),
+          child: Column(
+            mainAxisSize: MainAxisSize.min,
+            children: [
+              const Icon(
+                Icons.check_circle_outline_rounded,
+                size: 100,
+                color: Colors.green,
+              ),
+              const SizedBox(height: 15),
+              const Text(
+                "Success!",
+                textAlign: TextAlign.center,
+                style: TextStyle(
+                  color: Colors.green,
+                  fontSize: 25.0,
+                  fontWeight: FontWeight.bold,
+                ),
+              ),
+              const SizedBox(height: 10),
+              Padding(
+                padding: const EdgeInsets.symmetric(horizontal: 25.0),
+                child: Text(
+                  message,
+                  style: const TextStyle(
+                    color: Colors.black,
+                    fontSize: 15.0,
+                    fontWeight: FontWeight.bold,
+                  ),
+                ),
+              ),
+              const SizedBox(height: 10),
+              SizedBox(
+                width: 300,
+                height: 100,
+                child: MyButton(
+                  onTap: () {
+                    Navigator.pop(context);
+                  },
+                  buttonText: "Dismiss",
+                  buttonColor: Colors.green,
+                  textColor: Colors.white,
+                ),
+              ),
+            ],
+          ),
+        ),
+      ],
+    );
+  }
+
+  Widget? getSuccessMessage(String type) {
+    return messageTypes[type];
+  }
+
+  @override
+  void initState() {
+    message = widget.successMessage;
+    setSuccessmessage();
+    super.initState();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Dialog(child: getSuccessMessage(widget.successType));
+  }
+}