Shadow: Update v1.0.5

– Added the support to select multiple layers and add the Shadow at all of them.

– Speeded up the process of Auto-update when only Color or Opacity changes (then the shadow is not recreated again entirely but the changes are applied only for the Color or the Opacity).

– Faster sync between the sliders and the input fields (thanks to Vue.js reactivity).

– Added the support to use the arrow keys on the keyboard inside the input fields (the numbers next to the sliders).