fix: KeyboardAvoidingView incorrect layout (#954)

## 📜 Description

Don't allow `height` to be `0` when `KeyboardAvoidingView` has
`behavior="height"`.

## 💡 Motivation and Context

The problem is that when we apply `{height: 0}` and then apply `{}`,
then view doesn't reset its styles.

To overcome that problem I decided to avoid cases when we apply
non-positive height (i. e. `<= 0`).

Closes
#949

## 📢 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

- add `height > 0` condition;

## 🤔 How Has This Been Tested?

Tested in example app.

## 📸 Screenshots (if appropriate):

|Before|After|
|-------|-----|
|<video
src="https://github.com/user-attachments/assets/1af0e90f-8ed3-40d5-a654-62fb860d697b">|<video
src="https://github.com/user-attachments/assets/e2ffce05-0377-4693-99f2-ddba036d55cf">|

## 📝 Checklist

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

Author: kirillzyusko

src/components/KeyboardAvoidingView/index.tsx

@@ -145,12 +145,13 @@ const KeyboardAvoidingView = forwardRef<
       const translateY = interpolateToRelativeKeyboardHeight(translate.value);
       const paddingBottom = interpolateToRelativeKeyboardHeight(padding.value);
       const bottomHeight = enabled ? bottom : 0;
+      const height = frame.value.height - bottomHeight;
 
       switch (behavior) {
         case "height":
-          if (!keyboard.isClosed.value) {
+          if (!keyboard.isClosed.value && height > 0) {
             return {
-              height: frame.value.height - bottomHeight,
+              height,
               flex: 0,
             };
           }