[orx-noise] Tidy up demos

Produce 720px wide images.
Use main() = application { for reduced indentation

orx-noise/src/jvmDemo/kotlin/phrases/DemoUHashPhrase01.kt

@@ -2,27 +2,29 @@ package phrases
 
 import org.openrndr.application
 import org.openrndr.draw.shadeStyle
-import org.openrndr.extra.noise.phrases.*
+import org.openrndr.extra.noise.phrases.fhash13
 
 /**
  * Demonstrate uniform hashing function phrase in a shadestyle
  */
-fun main() {
-    application {
-        program {
-            extend {
-                /** A custom shadestyle */
-                val ss = shadeStyle {
-                    fragmentPreamble = """$fhash13"""
-                    fragmentTransform = """
+fun main() = application {
+    configure {
+        width = 720
+        height = 360
+    }
+    program {
+        extend {
+            /** A custom shadestyle */
+            val ss = shadeStyle {
+                fragmentPreamble = """$fhash13"""
+                fragmentTransform = """
                         float cf = fhash13(vec3(c_screenPosition, p_time));
                         x_fill = vec4(cf, cf, cf, 1.0);                                                                       
                     """.trimIndent()
-                    parameter("time", seconds)
-                }
-                drawer.shadeStyle = ss
-                drawer.circle(drawer.bounds.center, 100.0)
+                parameter("time", seconds)
             }
+            drawer.shadeStyle = ss
+            drawer.circle(drawer.bounds.center, 100.0)
         }
     }
-}
+}