fix: sendUnhandled wasn't working correctly

[TheRealAgentK]

fix: #72 - sendUnhandled was't working correcly

Description :memo:

• Purpose: Fixes #72 and improves clarity of behaviour in sample app

Type of change

• [x] Bug fix (non-breaking change which fixes an issue)

Updates

:point_right: Fixed RaygunClient where sendUnhandled wasn't falling through to the correct implementation :point_right: Improved flow in sampleapp to remove ambiguities around what's actually happening in there when I was tr

Author to check :eyeglasses:

• [x] Project and all contained modules builds successfully
• [x] Self-/dev-tested
• [x] Unit/UI/Automation/Integration tests provided where applicable
• [x] Code is written to standards
• [x] Appropriate documentation written (code comments, internal docs)

Reviewer to check :heavy_check_mark:

• [x] Project and all contained modules builds successfully
• [ ] Change has been dev-/reviewer-tested, where possible
• [ ] Unit/UI/Automation/Integration tests provided where applicable
• [x] Code is written to standards
• [x] Appropriate documentation written (code comments, internal docs)