TF-1098 Apply lints for all module

core/lib/presentation/views/image/avatar_builder.dart

@@ -64,7 +64,7 @@ class AvatarBuilder {
 
   Widget build() {
     return InkWell(
-      onTap: () => _onTapAvatarActionClick != null ? _onTapAvatarActionClick?.call() : null,
+      onTap: () => _onTapAvatarActionClick != null ? _onTapAvatarActionClick!.call() : null,
       onTapDown: (detail) {
         if (_onTapAvatarActionWithPositionClick != null && _context != null) {
           final screenSize = MediaQuery.of(_context!).size;
@@ -96,7 +96,7 @@ class AvatarBuilder {
               color: _bgColor ?? AppColor.avatarColor
           ),
           child: Text(
-              '${_text ?? ''}',
+              _text ?? '',
               style: _textStyle ?? TextStyle(fontSize: 20, color: _textColor ?? AppColor.avatarTextColor, fontWeight: FontWeight.w500)
           )
       ),

core/lib/presentation/views/image/icon_builder.dart

@@ -6,7 +6,7 @@ typedef OnPressIconActionClick = void Function();
 class IconBuilder {
   Key? _key;
   double? _size;
-  String? _icon;
+  final String? _icon;
   EdgeInsets? _padding;
   OnPressIconActionClick? _onPressIconActionClick;
 
@@ -34,7 +34,7 @@ class IconBuilder {
       width: _size ?? 40,
       height: _size ?? 40,
       alignment: Alignment.center,
-      padding: _padding ?? EdgeInsets.all(3),
+      padding: _padding ?? const EdgeInsets.all(3),
       child: Material(
           borderRadius: BorderRadius.circular((_size ?? 40) / 2),
           color: Colors.transparent,