feat(border): [android] `border-style: none` support

[mateoguzmana]

Summary:

As part of #34425, borderStyle value of none should be supported.

In this PR, the BorderStyle enum is extended and the logic is implemented to make the none value work in both BorderDrawable and CSSBackgroundDrawable as currently there is a feature flag enableNewBackgroundAndBorderDrawables controlling which class draws the border. The logic has been implemented in both classes so it works regardless of the feature flag value.

In this PR the border style value doesn't explicitly expose the newly accepted property none in the types yet as the implementation for iOS is still needed. Notice the FlowFixMe in the examples.

Changelog:

[ANDROID][ADDED] - border-style: none support

Test Plan:

Two new examples are added. One for Text and one for View – both of them are setting some properties for the border which by default makes the components draw a border with a default BorderStyle.SOLID, but since the property borderStyle: 'none' is also passed, that default is overwritten hence you see no border applied.

Both examples have been tested with the enableNewBackgroundAndBorderDrawables feature flag on and off.

Text Example	View Example