ErrorProne: fix sampler/MissingSummary

sampler/src/main/java/atlantafx/sampler/theme/ThemeManager.java

@@ -76,7 +76,7 @@ public final class ThemeManager {
         return getRepository().getAll().get(0);
     }
 
-    /** @see SamplerTheme */
+    /** See {@link SamplerTheme}. */
     public void setTheme(SamplerTheme theme) {
         Objects.requireNonNull(theme);
 

sampler/src/main/java/atlantafx/sampler/util/ContrastLevel.java

@@ -75,7 +75,7 @@ public enum ContrastLevel {
     }
 
     /**
-     * @see ContrastLevel#getColorLuminance(double[])
+     * See {@link ContrastLevel#getColorLuminance}.
      */
     public static double getColorLuminance(Color color) {
         return getColorLuminance(new double[]{color.getRed(), color.getGreen(), color.getBlue()});