Configuration instructions for implementing provideTippyConfig doesn't work in Angular Module boostrapping in v9+: "Type 'EnvironmentProviders' is not assignable to type 'Provider'."

[localpcguy]

I'm submitting a...

[x] Regression (a behavior that used to work and stopped working in a new release)
[ ] Bug report  
[ ] Performance issue
[ ] Feature request
[x] Documentation issue or request
[ ] Support request
[ ] Other... Please describe:

Current behavior

Currently in v9+ if still using Angular Modules instead of the standalone component bootstrapping (i.e. using bootstrapApplication), trying to follow the instructions for setup in the README causes an error if trying to add it to the module providers.

Type 'EnvironmentProviders' is not assignable to type 'Provider'.

provideTippyConfig({
~~~~~~~~~~~~~~~~~~~~
    defaultVariation: 'primary',
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    ... 
    },
   ~~~
}),

Prior to v9, it was not using makeEnvironmentProviders, and I don't question that change, as it has benefits and also Angular is moving towards Standalone components and so (as I understand it) this is correct for anyone who is starting a new app or has migrated their app to use the bootstrapApplication method instead of bootstrapping via a module.

Not 100% sure this counts as a regression as it was changed in a major version update, and so could just be considered a breaking change. I do think potentially this could be addressed with an update to the documentation for how to do it for legacy module-based apps, and if that is something that would be accepted, I could make a PR to update it. I'm definitely open to being wrong that I'm just doing something wrong and or misunderstanding the issue and if that's the case, please just let me know.

Expected behavior

Can use the documentation to get up and running with apps that (still) use Module to bootstrap.

Minimal reproduction of the problem with instructions

N/A

Describe the motivation or the concrete use case.

Ability for more people to be able to successfully follow the instructions and get running properly

Environment

Angular version: v17+
 
For Tooling issues:
- Node version: v20 LTS
- Platform:  Mac (likely irrelevant)

Suggested resolution:

This worked for me as a fallback until we can update to use bootstrapApplication, and so for the documentation, I would suggest (assuming my understanding is correct), adding a "legacy" section for module

@NgModule({
  ...
  providers: [
    ...
    {
      provide: TIPPY_CONFIG,
      useValue: {
        defaultVariation: 'tooltip',
        variations: {
          tooltip: tooltipVariation,
          popper: popperVariation,
        }
      },
    }
  ];
...
})l;