Remove opacity from native props list

[tomekzaw]

Description

Currently, opacity prop is listed both in UI_THREAD_PROPS_WHITELIST and NATIVE_THREAD_PROPS_WHITELIST. However, when splitting props into three groups (namely: UI props, native props and JS props), we always search in the UI props set first, so effectively opacity is always animated like a UI prop (which is the expected behaviour). Nevertheless, we would like to avoid confusion by keeping these two sets disjoint, so this PR removes opacity from NATIVE_THREAD_PROPS_WHITELIST.

Changes

• Removed opacity from native props list

Test code and steps to reproduce

1. Launch Example app
2. Open Olympic animation demo
3. See if opacity is properly animated

Checklist

• Included code example that can be used to test this change
• Updated TS types
• Added TS types tests
• Added unit / integration tests
• Updated documentation
• Ensured that CI passes

[piaskowyk]

👍