🐛 Add IBGpreSendingHandler to the supported events

[AliAbdelfattah]

Problem: #365

Root Cause:

IBGpreSendingHandler event was accidentally removed while refactoring modules.

Solution

Added IBGpreSendingHandler to the supported events of InstabugReactBridge.

[codecov]

Codecov Report

Merging #366 into master will not change coverage.
The diff coverage is n/a.

@@          Coverage Diff           @@
##           master    #366   +/-   ##
======================================
  Coverage    95.3%   95.3%           
======================================
  Files          21      21           
  Lines         341     341           
  Branches       63      63           
======================================
  Hits          325     325           
  Misses         16      16

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