atStatesMaxLifetime reduced from 14 days to 5 days

Whilst we would ultimately like to drop these to 24 hours only, for now we need some headroom to allow for orphaning in the event of a problem. Orphaning currently fails if there is no ATStatesData available (which is the case for trimmed blocks). This could ultimately be solved by retaining older unique states, which is essentially what the sleeping AT feature will do.

src/main/java/org/qortal/settings/Settings.java

@@ -97,7 +97,7 @@ public class Settings {
 	private int blockCacheSize = 10;
 
 	/** How long to keep old, full, AT state data (ms). */
-	private long atStatesMaxLifetime = 2 * 7 * 24 * 60 * 60 * 1000L; // milliseconds
+	private long atStatesMaxLifetime = 5 * 24 * 60 * 60 * 1000L; // milliseconds
 	/** How often to attempt AT state trimming (ms). */
 	private long atStatesTrimInterval = 5678L; // milliseconds
 	/** Block height range to scan for trimmable AT states.<br>