runelite-client: initialize config on start for fishing and imp plugin

runelite-client/src/main/java/net/runelite/client/plugins/fishing/FishingPlugin.java

@@ -63,6 +63,9 @@ public class FishingPlugin extends Plugin
 	{
 		ScheduledExecutorService executor = runelite.getExecutor();
 		future = executor.scheduleAtFixedRate(this::checkFishing, CHECK_INTERVAL, CHECK_INTERVAL, TimeUnit.SECONDS);
+
+		// Initialize overlay config
+		spotOverlay.updateConfig();
 	}
 
 	@Override

runelite-client/src/main/java/net/runelite/client/plugins/implings/Implings.java

@@ -52,6 +52,9 @@ public class Implings extends Plugin
 		font = font.deriveFont(Font.BOLD, 16);
 		GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
 		ge.registerFont(font);
+
+		// Initialize overlay config
+		overlay.updateConfig();
 	}
 
 	@Override