refactor: remove replicas (#358)

## 📜 Description

Removed replicas from the package.

## 💡 Motivation and Context

Initially when I started to work on this package I thought to add
replicas for iOS or Android if I can not derive values from a native
code. Turned out I can actually derive them, so replicas are kind of not
useful anymore.

These methods were not documented anywhere, but I see that people are
constantly trying to find these methods in documentation:

<img width="577" alt="image"
src="https://github.com/kirillzyusko/react-native-keyboard-controller/assets/22820318/1ad9b20a-2d33-40cf-9db3-5e5094826e93">

Since these methods were never a part of official API of this library -
I'm removing them 😎

Also this change can be considered as optimization, because I'm removing
code and thus reduce size of the package.

## 📢 Changelog

<!-- High level overview of important changes -->
<!-- For example: fixed status bar manipulation; added new types
declarations; -->
<!-- If your changes don't affect one of platform/language below - then
remove this platform/language -->

### JS

- removed `replicas`

## 🤔 How Has This Been Tested?

Tested manually on iPhone 15 Pro and Pixel 2.

## 📝 Checklist

- [x] CI successfully passed
- [x] I added new mocks and corresponding unit-tests if library API was
changed

Author: kirillzyusko

FabricExample/src/components/KeyboardAnimation/index.tsx

@@ -1,15 +1,11 @@
 import React from "react";
 import { Animated, TextInput, View } from "react-native";
-import {
-  useKeyboardAnimation,
-  useKeyboardAnimationReplica,
-} from "react-native-keyboard-controller";
+import { useKeyboardAnimation } from "react-native-keyboard-controller";
 
 import styles from "./styles";
 
 export default function KeyboardAnimation() {
   const { height, progress } = useKeyboardAnimation();
-  const { height: heightReplica } = useKeyboardAnimationReplica();
 
   return (
     <View style={styles.container}>
@@ -51,15 +47,6 @@ export default function KeyboardAnimation() {
               transform: [{ translateY: height }],
             }}
           />
-          <Animated.View
-            style={{
-              width: 50,
-              height: 50,
-              backgroundColor: "blue",
-              borderRadius: 25,
-              transform: [{ translateY: heightReplica }],
-            }}
-          />
         </View>
       </View>
     </View>