Correct image shortcut icon color background and foreground

DocumentsUI shortcut icons only support 1 design(Blue+White background)
Keep all shortcuts in documentsUI the same foreground/background color

  ic_image_shortcut.xml: used for shortcut
  ic_doc_image.xml: used for hamburger menu

Bug: 112705453
Test: manual long press Files shortcut and observe correct visual
Test: atest DocumentsUITests
Change-Id: Iff8110844583dbe9ae8be45b364d205a4ac09a23