Allow to provide a default overridable value for Qute @Message

[ia3andy]

Description

Currently it's not possible to override a message value through a message properties files when specified by @message. I think we should add a boolean to specify if this value can be overridden by a properties file or not (or a defaultValue field).

This will allow to declare a MessageBundle in a roq-theme and allow user to override them in properties files.

For example:

@MessageBundle(value = "roq_theme", locale = "en")
public interface ThemeMessageBundle {

    @Message(defaultValue = "Contact me")
    String contact_title();

}

Implementation ideas

No response

[quarkus-bot]

/cc @mkouba (qute)

[mkouba]

Yes, the @Message#value() always takes precedence as documented in https://quarkus.io/guides/qute-reference#message-templates. I think that @Message#defaultValue() would make sense.