Improve config constants pickup

[nfroidure]

When picking constants values in the config, now that the location property can be associated to Knifecycle initializers, we could instead of stringifying constants, directly import it from the config file:

whook/packages/whook/src/services/_autoload.ts

Lines 196 to 202 in 75132c3

	if (APP_CONFIG && APP_CONFIG[injectedName]) {
	log(
	'debug',
	`📖 - Picking the "${injectedName}" constant in the "APP_CONFIG" service properties.`,
	);
	return constant(injectedName, APP_CONFIG[injectedName]);
	}

That said, it would necessit to not use the default export but instead use named exports to be able to load the configurations via Knifecycle builds, leading to the same problem that the following issue needs : whole module typing.

A side effect of it would be that the configuration constants, currently stringified by the build, would now be dynamically assigned (so any logic inside it would also operate in the build, ie reading env to selectively enable a config). Not sure it is a good or bad thing. Need some thinking before deciding.