style: change invalid state exception msg

src/dumper/dumper.cs

@@ -114,7 +114,7 @@ class Dumper
     public void DumpCharacters()
     {
         if (_dataPak == null || _provider == null)
-            throw new InvalidOperationException("Attempted to call dump function without dumper initialization");
+            throw new InvalidOperationException("Attempted to call dump function without dumper initialization/state");
 
         _log.Info("Dumping characters");
 
@@ -157,7 +157,7 @@ class Dumper
     public void DumpCharacterIcons()
     {
         if (_provider == null)
-            throw new InvalidOperationException("Attempted to call dump function without dumper initialization");
+            throw new InvalidOperationException("Attempted to call dump function without dumper initialization/state");
 
         _log.Info("Dumping character icons");
 
@@ -172,7 +172,7 @@ class Dumper
     public void DumpItems()
     {
         if (_dataPak == null || _provider == null)
-            throw new InvalidOperationException("Attempted to call dump function without dumper initialization");
+            throw new InvalidOperationException("Attempted to call dump function without dumper initialization/state");
 
         _log.Info("Dumping character icons");
 
@@ -225,7 +225,7 @@ class Dumper
     public void DumpItemIcons()
     {
         if (_provider == null)
-            throw new InvalidOperationException("Attempted to call dump function without dumper initialization");
+            throw new InvalidOperationException("Attempted to call dump function without dumper initialization/state");
 
         _log.Info("Dumping item icons");
 
@@ -283,7 +283,7 @@ class Dumper
 
     private void ExportIcon(string assetPath, string outPath)
     {
-        if (_provider == null) throw new InvalidOperationException("Attempted to export icon when dumper was not initialized/invalid");
+        if (_provider == null) throw new InvalidOperationException("Attempted to call dump function without dumper initialization/state");
 
         string cleanPath = assetPath.Contains('.') ? assetPath[..assetPath.LastIndexOf('.')] : assetPath;
         string fileName = Path.GetFileName(cleanPath) + ".png";