Fix event name corresponding to trackComplete() API from mediacomplete to complete

[addb]

and have platform parity

Description

Related Issue

Motivation and Context

How Has This Been Tested?

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• I have signed the Adobe Open Source CLA.
• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.

[codecov]

Codecov Report

Merging #47 (0a4d300) into dev-v3.0.1 (adcc340) will not change coverage.
The diff coverage is n/a.

@@             Coverage Diff             @@
##           dev-v3.0.1      #47   +/-   ##
===========================================
  Coverage       92.54%   92.54%           
===========================================
  Files              28       28           
  Lines            2159     2159           
===========================================
  Hits             1998     1998           
  Misses            161      161