chore: drop React Native 0.62, 0.63 since 3.14.0 (#1533)

* docs: add note to main readme

Since 3.15.0 we support React Native 0.64+

* chore: set minSdkVersion to 21

* chore: remove unnecessary check for API version in Android code

Due to https://apilevels.com/ Build.VERSION_CODES.LOLIPOP is API version
21 --> from now on this condition is redundant

* chore: remove obsolete check for Android API version

According to https://apilevels.com/ JELLY_BEAN_MR1 is API version 17 -->
this check is now obsolete. So is the annotation.

README.md

@@ -71,6 +71,7 @@ Screens are already integrated with the React Native's most popular navigation l
 
 | version | react-native version |
 | ------- | -------------------- |
+| 3.14.0+ | 0.64.0+              |
 | 3.0.0+  | 0.62.0+              |
 | 2.0.0+  | 0.60.0+              |
 

android/build.gradle

@@ -50,7 +50,7 @@ android {
     }
 
     defaultConfig {
-        minSdkVersion safeExtGet('minSdkVersion', 16)
+        minSdkVersion safeExtGet('minSdkVersion', 21)
         targetSdkVersion safeExtGet('targetSdkVersion', 22)
         versionCode 1
         versionName "1.0"

android/src/main/java/com/swmansion/rnscreens/ScreenStackHeaderConfig.kt

@@ -130,15 +130,14 @@ class ScreenStackHeaderConfig(context: Context) : ViewGroup(context) {
             return null
         }
 
-    @SuppressLint("ObsoleteSdkInt") // to be removed when support for < 0.64 is dropped
     fun onUpdate() {
         val stack = screenStack
         val isTop = stack == null || stack.topScreen == parent
         if (!mIsAttachedToWindow || !isTop || mDestroyed) {
             return
         }
         val activity = screenFragment?.activity as AppCompatActivity? ?: return
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1 && mDirection != null) {
+        if (mDirection != null) {
             if (mDirection == "rtl") {
                 toolbar.layoutDirection = LAYOUT_DIRECTION_RTL
             } else if (mDirection == "ltr") {

android/src/main/java/com/swmansion/rnscreens/ScreenWindowTraits.kt

@@ -48,7 +48,7 @@ object ScreenWindowTraits {
 
     @SuppressLint("ObsoleteSdkInt") // to be removed when support for < 0.64 is dropped
     internal fun setColor(screen: Screen, activity: Activity?, context: ReactContext?) {
-        if (activity == null || context == null || Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
+        if (activity == null || context == null) {
             return
         }
         if (mDefaultStatusBarColor == null) {