Rename ExceptionCatcher to XCDocsExceptionCatcher across package

[krzyzanowskim]

The target name ExceptionCatcher is unfortunate and conflicts with https://github.com/sindresorhus/ExceptionCatcher package. The unfortunate part is that SwiftPM requires all targets unique in the graph 🤷

multiple packages ('exceptioncatcher', 'xcdocs') declare targets with a conflicting name: 'ExceptionCatcher’; target names need to be unique across the package graph

I propose rename ExceptionCatcher → XCDocsExceptionCatcher

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Note

Low Risk
Low risk rename-only change, but it can break builds for any downstream consumers or internal references that still import ExceptionCatcher or expect the old target path/name.

Overview
Renames the SwiftPM target/module from ExceptionCatcher to XCDocsExceptionCatcher, including moving its target path to Sources/XCDocsExceptionCatcher and updating target dependencies in Package.swift.

Updates code and tests to import XCDocsExceptionCatcher (e.g., MADServiceObject and ExceptionCaptureTests) so the Objective-C exception catching helper continues to compile under the new module name.

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