Remove event args from argument converters and instead make use of ProcessorConverterContext similar to ProcessorCommandContext

See voice recording

The audio didn't record. Here's the TL;DR:

Drop event args from being passed to the converter and instead add the data specific to the event args into the processor specific converter context. Here's an example:

public class TextConverterContext : ConverterContext
{
    public required DiscordMessage Message { get; init; }
}

// ...

TextConverterContext converterContext = new()
{
    Message = eventArgs.Message,
    Channel = eventArgs.Channel,
    Command = command,
    Extension = this.extension,
    RawArguments = commandText[index..],
    ServiceScope = scope,
    Splicer = this.Configuration.TextArgumentSplicer,
    User = eventArgs.Author
};

By dropping the event args required by the argument converters, we may be able to greatly simplify the base command processor and processor implementation in general. Much appreciation to @quinchs for pointing this out.