add title to Calculator

Frontend/lib/mih_packages/calculator/mih_calculator.dart

@@ -25,6 +25,7 @@ class _MIHCalculatorState extends State<MIHCalculator> {
       appActionButton: getAction(),
       appTools: getTools(),
       appBody: getToolBody(),
+      appToolTitles: getToolTitle(),
       selectedbodyIndex: _selectedIndex,
       onIndexChange: (newValue) {
         setState(() {
@@ -71,4 +72,12 @@ class _MIHCalculatorState extends State<MIHCalculator> {
     ];
     return toolBodies;
   }
+
+  List<String> getToolTitle() {
+    List<String> toolTitles = [
+      "Simple Calculator",
+      "Tip Calculator",
+    ];
+    return toolTitles;
+  }
 }

Frontend/lib/mih_packages/calculator/package_tools/simple_calc.dart

@@ -72,7 +72,7 @@ class _SimpleCalcState extends State<SimpleCalc> {
   @override
   Widget build(BuildContext context) {
     return MihPackageToolBody(
-      borderOn: true,
+      borderOn: false,
       bodyItem: getBody(),
     );
   }
@@ -96,18 +96,6 @@ class _SimpleCalcState extends State<SimpleCalc> {
         mainAxisAlignment: MainAxisAlignment.start,
         mainAxisSize: MainAxisSize.min,
         children: <Widget>[
-          Text(
-            "Simple Calculator",
-            textAlign: TextAlign.center,
-            style: TextStyle(
-              fontSize: 25,
-              fontWeight: FontWeight.bold,
-              color: MzanziInnovationHub.of(context)!.theme.secondaryColor(),
-            ),
-          ),
-          Divider(
-              color: MzanziInnovationHub.of(context)!.theme.secondaryColor()),
-          const SizedBox(height: 10),
           Container(
             padding: const EdgeInsets.all(20),
             alignment: Alignment.centerRight,

Frontend/lib/mih_packages/calculator/package_tools/tip_calc.dart

@@ -263,7 +263,7 @@ class _TipCalcState extends State<TipCalc> {
   @override
   Widget build(BuildContext context) {
     return MihPackageToolBody(
-      borderOn: true,
+      borderOn: false,
       bodyItem: getBody(),
     );
   }
@@ -273,18 +273,6 @@ class _TipCalcState extends State<TipCalc> {
       child: Column(
         mainAxisSize: MainAxisSize.max,
         children: <Widget>[
-          Text(
-            "Tip Calculator",
-            textAlign: TextAlign.center,
-            style: TextStyle(
-              fontSize: 25,
-              fontWeight: FontWeight.bold,
-              color: MzanziInnovationHub.of(context)!.theme.secondaryColor(),
-            ),
-          ),
-          Divider(
-              color: MzanziInnovationHub.of(context)!.theme.secondaryColor()),
-          const SizedBox(height: 10),
           MIHNumberField(
             controller: billAmountController,
             hintText: "Bill Amount",