refactor(ui): rework text gradient and text wrapper

packages/wyatt_ui_components/lib/src/core/extensions/string_extension.dart

@@ -15,10 +15,11 @@
 // along with this program. If not, see <https://www.gnu.org/licenses/>.
 
 import 'package:flutter/widgets.dart';
-import 'package:wyatt_ui_components/src/core/utils/text_wrapper.dart';
+import 'package:wyatt_ui_components/wyatt_wyatt_ui_components.dart';
 
 extension StringExtension on String? {
-  TextWrapper? wrap({TextStyle? style, List<Color>? gradient}) => this != null
-      ? TextWrapper(this!, style: style, gradient: gradient)
-      : null;
+  TextWrapper? wrap({TextStyle? style, MultiColor? gradientColors}) =>
+      this != null
+          ? TextWrapper(this!, style: style, gradientColors: gradientColors)
+          : null;
 }

packages/wyatt_ui_components/lib/src/core/utils/text_wrapper.dart

@@ -15,17 +15,22 @@
 // along with this program. If not, see <https://www.gnu.org/licenses/>.
 
 import 'package:flutter/material.dart';
+import 'package:wyatt_ui_components/wyatt_wyatt_ui_components.dart';
 
+/// Wraps [String] and [TextStyle] into one object that can be
+/// a [Text] or a [RichText].
 class TextWrapper {
   const TextWrapper(
     this.text, {
     this.style,
-    this.gradient,
+    this.gradientColors,
   });
 
-  factory TextWrapper.text(String text) => TextWrapper(text);
+  const TextWrapper.text(this.text)
+      : style = null,
+        gradientColors = null;
 
   final String text;
   final TextStyle? style;
-  final List<Color>? gradient;
+  final MultiColor? gradientColors;
 }