fix: update other usages of cdk-keyboard-focused

Author: crisbeto

src/lib/button-toggle/button-toggle.scss

@@ -38,10 +38,13 @@ $mat-button-toggle-border-radius: 2px !default;
 .mat-button-toggle {
   white-space: nowrap;
   position: relative;
-}
 
-.mat-button-toggle.cdk-keyboard-focused .mat-button-toggle-focus-overlay {
-  opacity: 1;
+  &.cdk-keyboard-focused,
+  &.cdk-program-focused {
+    .mat-button-toggle-focus-overlay {
+      opacity: 1;
+    }
+  }
 }
 
 .mat-button-toggle-label-content {

src/lib/datepicker/_datepicker-theme.scss

@@ -52,7 +52,8 @@ $mat-calendar-weekday-table-font-size: 11px !default;
   }
 
   :not(.mat-calendar-body-disabled):hover,
-  .cdk-keyboard-focused .mat-calendar-body-active {
+  .cdk-keyboard-focused .mat-calendar-body-active,
+  .cdk-program-focused .mat-calendar-body-active {
     & > .mat-calendar-body-cell-content:not(.mat-calendar-body-selected) {
       background-color: mat-color($background, hover);
     }

src/lib/slider/slider.scss

@@ -93,7 +93,8 @@ $mat-slider-focus-ring-size: 30px !default;
               background-color $swift-ease-out-duration $swift-ease-out-timing-function,
               opacity $swift-ease-out-duration $swift-ease-out-timing-function;
 
-  .cdk-keyboard-focused & {
+  .cdk-keyboard-focused &,
+  .cdk-program-focused & {
     transform: scale(1);
     opacity: 1;
   }