Change knob drop shadow to be a little smaller and smoother (#300)

Author: pedrovereza

.github/workflows/ios.yml

@@ -9,7 +9,7 @@ on:
 jobs:
   build:
     name: Build and Test SDKHostApp scheme using any available iPhone simulator
-    runs-on: macos-11
+    runs-on: macos-latest
 
     steps:
       - name: Checkout
@@ -18,7 +18,7 @@ jobs:
         env:
           scheme: ${{ 'SDKHostApp' }}
           platform: ${{ 'iOS Simulator' }}
-          os: ${{ '15.2' }}
+          os: ${{ '16.2' }}
           device: ${{ 'iPhone 13' }}
         run: |
           # xcrun xctrace returns via stderr, not the expected stdout (see https://developer.apple.com/forums/thread/663959)

IFTTT SDK/ConnectButton+SwitchControl.swift

@@ -22,9 +22,9 @@ extension ConnectButton {
                 super.init()
 
                 layer.shadowColor = UIColor.black.cgColor
-                layer.shadowOpacity = 0.25
-                layer.shadowRadius = 2
-                layer.shadowOffset = CGSize(width: 2, height: 8)
+                layer.shadowOpacity = 0.16
+                layer.shadowRadius = 6
+                layer.shadowOffset = CGSize(width: 0, height: 3)
 
                 addSubview(iconView)
                 iconView.constrain.center(in: self)