Fix argument resolver interpreting settings arg correctly if first and/or second arg is null

[silesky]

Fix argument resolver bug where the following would not set the correct options:

analytics.page(
   null, 
   'foo', 
   { url: "https://foo.com" }, 
   { context: { __eventOrigin: { type: 'Signal' } } // would not result in the correct context object.
)

[changeset-bot]

🦋 Changeset detected

Latest commit: 8d224ab

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

This PR includes changesets to release 2 packages

Name	Type
@segment/analytics-next	Minor
@segment/analytics-signals	Patch

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 83.85%. Comparing base (7c24459) to head (8d224ab).
Report is 3 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1246      +/-   ##
==========================================
+ Coverage   77.06%   83.85%   +6.78%     
==========================================
  Files         139      221      +82     
  Lines        3249     5872    +2623     
  Branches      690     1344     +654     
==========================================
+ Hits         2504     4924    +2420     
- Misses        745      948     +203     

Flag	Coverage Δ
browser	92.26% <100.00%> (?)
core	89.86% <ø> (ø)
node	87.93% <ø> (ø)

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