[DocsUI M3] Update drag badge colors

* Use different colors for copy symbol and reject symbol.
* Update static colors for SDK 30.

Bug: 408883935
Test: m DocumentsUIGoogle && manual inspection
Flag: com.android.documentsui.flags.use_material3
Change-Id: Idb67e96ebf12473a82784d6770e702d38c6fe4a7