add dispose to files to remove controllers when not used

Frontend/patient_manager/lib/components/inputsAndButtons/mihButton.dart

@@ -1,6 +1,6 @@
 import 'package:flutter/material.dart';
 
-class MIHButton extends StatelessWidget {
+class MIHButton extends StatefulWidget {
   final void Function() onTap;
   final String buttonText;
   final Color buttonColor;
@@ -14,22 +14,33 @@ class MIHButton extends StatelessWidget {
     required this.textColor,
   });
 
+  @override
+  State<MIHButton> createState() => _MIHButtonState();
+}
+
+class _MIHButtonState extends State<MIHButton> {
+  @override
+  void dispose() {
+    // TODO: implement dispose
+    super.dispose();
+  }
+
   @override
   Widget build(BuildContext context) {
     return ElevatedButton(
-      onPressed: onTap,
+      onPressed: widget.onTap,
       style: ElevatedButton.styleFrom(
-        backgroundColor: buttonColor,
+        backgroundColor: widget.buttonColor,
         shape: RoundedRectangleBorder(
           borderRadius: BorderRadius.circular(12.0),
         ),
       ),
       child: Text(
-        buttonText,
+        widget.buttonText,
         style: TextStyle(
           //fontWeight: FontWeight.bold,
           fontSize: 20,
-          color: textColor,
+          color: widget.textColor,
           fontWeight: FontWeight.bold,
         ),
       ),

Frontend/patient_manager/lib/components/inputsAndButtons/mihDateInput.dart

@@ -81,6 +81,12 @@ class _MIHDateFieldState extends State<MIHDateField> {
     return null;
   }
 
+  @override
+  void dispose() {
+    _focus.dispose();
+    super.dispose();
+  }
+
   @override
   void initState() {
     _focus.addListener(_onFocusChange);

Frontend/patient_manager/lib/components/inputsAndButtons/mihDropdownInput.dart

@@ -88,6 +88,12 @@ class _MIHDropdownFieldState extends State<MIHDropdownField> {
     return menueList;
   }
 
+  @override
+  void dispose() {
+    _focus.dispose();
+    super.dispose();
+  }
+
   @override
   void initState() {
     menu = buidMenueOptions(widget.dropdownOptions);

Frontend/patient_manager/lib/components/inputsAndButtons/mihFileInput.dart

@@ -102,6 +102,12 @@ class _MIHFileFieldState extends State<MIHFileField> {
     }
   }
 
+  @override
+  void dispose() {
+    _focus.dispose();
+    super.dispose();
+  }
+
   @override
   void initState() {
     _focus.addListener(_onFocusChange);

Frontend/patient_manager/lib/components/inputsAndButtons/mihMLTextInput.dart

@@ -77,6 +77,12 @@ class _MIHMLTextFieldState extends State<MIHMLTextField> {
     }
   }
 
+  @override
+  void dispose() {
+    _focus.dispose();
+    super.dispose();
+  }
+
   @override
   void initState() {
     _focus.addListener(_onFocusChange);

Frontend/patient_manager/lib/components/inputsAndButtons/mihPassInput.dart

@@ -113,6 +113,12 @@ class _MIHPassFieldState extends State<MIHPassField> {
     });
   }
 
+  @override
+  void dispose() {
+    textFieldFocusNode.dispose();
+    super.dispose();
+  }
+
   @override
   void initState() {
     textFieldFocusNode.addListener(_onFocusChange);

Frontend/patient_manager/lib/components/inputsAndButtons/mihSearchInput.dart

@@ -81,6 +81,12 @@ class _MIHSearchFieldState extends State<MIHSearchField> {
     }
   }
 
+  @override
+  void dispose() {
+    _focus.dispose();
+    super.dispose();
+  }
+
   @override
   void initState() {
     _focus.addListener(_onFocusChange);

Frontend/patient_manager/lib/components/inputsAndButtons/mihTextInput.dart

@@ -101,6 +101,12 @@ class _MIHTextFieldState extends State<MIHTextField> {
     }
   }
 
+  @override
+  void dispose() {
+    _focus.dispose();
+    super.dispose();
+  }
+
   @override
   void initState() {
     _focus.addListener(_onFocusChange);

Frontend/patient_manager/lib/components/inputsAndButtons/mihTimeInput.dart

@@ -99,6 +99,12 @@ class _MIHDateFieldState extends State<MIHTimeField> {
     return null;
   }
 
+  @override
+  void dispose() {
+    _focus.dispose();
+    super.dispose();
+  }
+
   @override
   void initState() {
     _focus.addListener(_onFocusChange);