David Taylor 6ce1fbc479
DEV: Replace Ember implicit injections with base class extensions (#21258)
Ember's implicit injections feature is removed in Ember 4.x. We want to give ourselves more time to migrate to explicit injections, so this commit re-implements our implicit injections as extensions to the base framework classes.

Incremental migration to newer patterns can be achieved using the `@disableImplicitInjections` class decorator (available from `discourse/lib/implicit-injections').

This resolves and unsilences the `implicit-injections` deprecation.
2023-05-03 10:39:30 +01:00
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