Update BaseInput.js

[Psiiirus]

After Upgrading to 58.4 the Hoshi-Input crashed.
This was related to an uninitialized width state variable at Hoshi.js:116
I traced it down to the BaseInput.js state initialization and added an default number value of 0

<Animated.View
          style={[
            styles.border,
            {
              width: focusedAnim.interpolate({
                inputRange: [0, 1],
116:          outputRange: [0, >>>>width<<<<],
              }),
              backgroundColor: borderColor,
              height: borderHeight,
            },
          ]}
        />
      </View>

Fixed RN ~58 crash: [39,"RCTView",1,{"position":"absolute","bottom":0,"left":0,"right":0,"width":"<>","backgroundColor":436207616,"height":0.5}] is not usable as a native method argument

This error is located at:
in RCTView (at View.js:45)
in View (at createAnimatedComponent.js:153)
in AnimatedComponent (at Hoshi.js:110)
in RCTView (at View.js:45)
in View (at Hoshi.js:50)
...

[halilb]

Thanks a lot @MM-Psiiirus!