Merge pull request #59 from JohanbcEkberg/master

Added .scala-build to .gitignore and fixed compiler warning

Author: bjornregnell

.gitignore

@@ -12,6 +12,7 @@ tmp
 **/.bsp
 **/metals.sbt
 .vscode
+**/.scala-build
 
 **/*.cache-main  # Eclipse
 **/.metadata     # Eclipse

src/main/scala/introprog/Swing.scala

@@ -26,7 +26,7 @@ object Swing:
 
   /** Find a look and feel with a name including `partOfName`. */
   def findLookAndFeel(partOfName: String): Option[String] =
-    installedLookAndFeels.find(_.toLowerCase contains partOfName)
+    installedLookAndFeels.find(_.toLowerCase `contains` partOfName)
 
   /** Test if the current operating system name includes `partOfName`. */
   def isOS(partOfName: String): Boolean =