Build 61

- Implemented auto-zoom on the second hint grid. This has been added to all 4 pre-existing configurations, and it looks like this:
<p align="center"><img src="https://github.com/user-attachments/assets/9867257d-fe28-4831-8c4a-5b5b6c7c580b" width="50%" height="50%"/><br>(click to view it full screen)</p>
Zooming looks like this in the configuration file:

```properties
hint2-2-mode.zoom.percent=5.0
hint2-2-mode.zoom.center=last-selected-hint
```

- Made the hint grid less dark and more transparent by default.

pom.xml

@@ -5,7 +5,7 @@
     <modelVersion>4.0.0</modelVersion>
     <groupId>mousemaster</groupId>
     <artifactId>mousemaster</artifactId>
-    <version>60</version>
+    <version>61</version>
     <name>mousemaster</name>
     <!--
     See https://graalvm.github.io/native-build-tools/latest/maven-plugin-quickstart.html