[TIMOB-19877] Android: Cannot tap to select text in TextArea with "editable" set to false like iOS

*Summary:* While a TextArea object's property "editable" is set to false, end-users cannot tap to select text like how it works on iOS. This is a parity issue. Note that the TextArea is not disabled. The end-user can scroll the content. The issue is that no cursor is shown and it's impossible for the end-user to make cursor selections. (However, the setSelection() method works and text selections can be made programmatically.) *Steps to reproduce:*

Build and run the below code on Android.

Tap and hold on a word in the TextArea.

Notice that no selection was made. _(This is the issue.)_

var window = Ti.UI.createWindow();
var textArea = Ti.UI.createTextArea({
	value: "Line 1\nLine 2\nLine 3\nLine 4\nLine 5\nLine 6\nLine 7\nLine 8",
	editable: false,
	suppressReturn: false,
	left: "20dp",
	right: "20dp",
	height: "100dp",
});
window.add(textArea);
window.open();

*Note:* On iOS, if TextField property "editable" is set false, then the end-user is unable to tap to select text either. So, in this case, both Android and iOS are in parity. I think this is the "native" iOS behavior, although it is inconsistent with iOS' own TextArea behavior. *Cause:* Titanium is calling setCursorVisible(false) in the Java TiUIText.handleKeyboard() method below. [TiUIText.java#L650](https://github.com/appcelerator/titanium_mobile/blob/3b75bf2b9f9733bca93ad22d738fea0525da9431/android/modules/ui/src/java/ti/modules/titanium/ui/widget/TiUIText.java#L650) But since iOS' TextField does not allow text selection while "editable" is false, Android should continue to call setCursorVisible(false) only for the single-line TextField case.