feat(android): add parity for BlurView API, move iOS to Ti.UI namespace

[hansemannn]

As discussed in m1ga/ti.blurview#2

This pull request introduces a new cross-platform-style BlurView for Android, providing a background blur effect similar to iOS' UIVisualEffectView. It adds a new Ti.UI.BlurView component, exposes cross-platform blur effect constants, and updates build dependencies to support the feature. Documentation is also added for the new component and its properties.

It uses Dimezis/BlurView for maximized backwards compatiblity - and iOS has also moved to the same API!

const win = Ti.UI.createWindow({ backgroundColor: '#fff' });
const target = Ti.UI.createView({ width: Ti.UI.FILL, height: Ti.UI.FILL });

target.add(Ti.UI.createImageView({
	image: '/DefaultIcon.png'
}));

const blur = Ti.UI.createBlurView({
	width: 200,
	height: 200,
	effect: Ti.UI.BLUR_EFFECT_STYLE_LIGHT
});

win.add(target);
win.add(blur);
win.open();

Static	Animating
	https://github.com/user-attachments/assets/1d6df851-4706-4d49-a970-2e8b19b7b64d

[hansemannn]

@m1ga iOS is now also moved over - we have the unique chance to do deprecate the old one in 13.0.0, so I will restore the Ti.UI.iOS.BlurView deprecate it in 13.0.0 and then we can remove it in 14.0.0

[hansemannn]

prefix with Ti to prevent clashes with other libs

[hansemannn]

Suggested change

	<attr name="blurOverlayColor" format="color"/>
	<attr name="ti_blurOverlayColor" format="color" />

[hansemannn]

Can you add a readme file to the package to link to the repo and explain why it's bundled like this?

[hansemannn]

Should be like this then?

Suggested change

	overlayColor = a.getColor(R.styleable.BlurView_blurOverlayColor, TRANSPARENT);
	overlayColor = a.getColor(R.styleable.TiBlurView_ti_blurOverlayColor, TRANSPARENT);

[hansemannn]

Do we even need that in the XML? Devs should rather use the top-level APIs, making this more clean / genuine as well

[hansemannn]

Let's move it to a module - but not in 13.0.0 anymore, the release is big enough already. We can keep this open and I'll prepare a blur view module under tidev that has the sources of this PR bundled in one repo. Alright?

[m1ga]

Let's move it to a module - but not in 13.0.0 anymore, the release is big enough already. We can keep this open and I'll prepare a blur view module under tidev that has the sources of this PR bundled in one repo. Alright?

sounds good. There we could also use the gradle module to reduce the code size if you want or this internal code setup