[MSPAINT] Trivial improvements

- Use SetPixelV instead of SetPixel.
- BI_RGB is zero.
- Use CS_HREDRAW and CS_VREDRAW.
CORE-18867

base/applications/mspaint/dib.cpp

@@ -33,7 +33,6 @@ CreateDIBWithProperties(int width, int height)
     bmi.bmiHeader.biHeight = height;
     bmi.bmiHeader.biPlanes = 1;
     bmi.bmiHeader.biBitCount = 24;
-    bmi.bmiHeader.biCompression = BI_RGB;
     return CreateDIBSection(NULL, &bmi, DIB_RGB_COLORS, NULL, NULL, 0);
 }