Emit Reset Events

[pooyaj]

• Emitting a reset event when user calls analytics.reset(). This allows for external code to hook into the reset events and do further logic.

• I've included a changeset (psst. run yarn changeset. Read about changesets here).

[changeset-bot]

🦋 Changeset detected

Latest commit: 9399b31

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@segment/analytics-next	Minor

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[silesky]

Looks good. Seems like the event emitter was kind of an afterthought, when it really can be exceptionally useful (I don't even know fits documented in the browser?) -- in node, the contract is very well defined and fully typed and every event gets emitted on by default with the context as an argument:

analytics-next/packages/node/src/app/dispatch-emit.ts

Line 35 in 03e6383

emitter.emit(event.type, ctx)

^ creating an enhanced dispatch feels cleaner, so we would just automatically emit on every type of event. We might be able to just port that function wholesale.

[pooyaj]

Yeah, agreed. The browser version emits separately in each of the track/identify/etc. calls with different parameters passed as extra context.