FlickerAnimatedText doesn't handle TextAlign

**Describe the bug**
When specifying TextAlign.center to FlickerAnimatedText, the text alignment remain set to its default value TextAlign.start.

**To Reproduce**
Steps to reproduce the behavior:
1. Instantiate a FlickerAnimatedText
2. Lay it out so that if fills the full width of the screen
3. Set the textAlign property to TextAlign.center
4. Set the text to a long text so that the alignment issue can easily be spotted
5. Run the app
6. See error

**Expected behavior**
The text should be center-aligned

**Screenshots**

**Flutter:**
- version 3.19.0
- stable channel

**Dart:**
- version 3.3.0

**Additional context**
Version 4.2.2 of animated_text_kit