Fix: EEVEE: Missing overlay when viewport resolution scale is greater than 1

This is a partial fix as it doesn't fix the gpencil
scene intersection.

source/blender/draw/engines/eevee_next/shaders/eevee_film_lib.glsl

@@ -626,7 +626,7 @@ float film_display_depth_amend(ivec2 texel, float depth)
   if (scaling_factor > 1) {
     /* The workaround below creates ugly artifacts for overlays relying on depth equal tests.
      * In this case, it is better to rely on overlay engine to do a depth pass (see #124013). */
-    return 0.0;
+    return 1.0;
   }
   /* This effectively offsets the depth of the whole 2x2 region to the lowest value of the region
    * twice. One for X and one for Y direction. */