More specific exception types for better error handling

Author: VictoriousRaptor

Flow.Launcher.Infrastructure/PinyinAlphabet.cs

@@ -48,7 +48,7 @@ private void CreateDoublePinyinTableFromStream(Stream jsonStream)
             string schemaKey = _settings.DoublePinyinSchema.ToString(); // Convert enum to string  
             if (!table.TryGetValue(schemaKey, out var value))
             {
-                throw new InvalidOperationException("DoublePinyinSchema is invalid or double pinyin table is broken.");
+                throw new ArgumentException("DoublePinyinSchema is invalid or double pinyin table is broken.");
             }
             currentDoublePinyinTable = new ReadOnlyDictionary<string, string>(value);
         }