[Tests-Only] Refactor apiShareNotifications to use Shares folder

[haribhandari07]

Description

This PR makes apiSharingNotifications test scenarios to be valid in both oC10 and OCIS. OCIS always puts received shares into a folder called Shares for the share receiver. On OCIS, auto-accept shares is always disabled.

Related Issue

• Part of enable sharing tests ocis#518

Motivation and Context

How Has This Been Tested?

• CI

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Database schema changes (next release will require increase of minor version instead of patch)
• Breaking change (fix or feature that would cause existing functionality to change)
• Technical debt
• Tests only (no source changes)

Checklist:

• Code changes
• Unit tests added
• Acceptance tests added
• Documentation ticket raised:
• Changelog item, see TEMPLATE

[codecov]

Codecov Report

Merging #37928 into master will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master   #37928   +/-   ##
=========================================
  Coverage     64.71%   64.71%           
  Complexity    19442    19442           
=========================================
  Files          1286     1286           
  Lines         76020    76020           
  Branches       1336     1336           
=========================================
  Hits          49196    49196           
  Misses        26430    26430           
  Partials        394      394           

Flag	Coverage Δ	Complexity Δ
#javascript	54.06% <ø> (ø)	0.00 <ø> (ø)
#phpunit	65.88% <ø> (ø)	19442.00 <ø> (ø)

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