docs(changelog): correct dot-source catch block before/after description

The Fixed entry described the change as `throw $_` → bare `throw`, but
`throw $_` was an intermediate state inside PR #14's review iterations.
The actual user-visible change from main was: a string `throw` (which
wrapped the original error in a fresh ErrorRecord) → bare `throw`
(which preserves the original ErrorRecord and stack trace).

Addresses Copilot inline review comment on PR #15.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: tablackburn

CHANGELOG.md

@@ -28,7 +28,7 @@ own `CHANGELOG.md` (generated from `CHANGELOG.template.md` during init).
 ### Fixed
 
 - `tests/Help.tests.ps1`: replaced undefined `$parameterNames` with `$commandParameterNames` in the help-vs-code parameter check (was silently asserting against `$null`).
-- `{{ModuleName}}/{{ModuleName}}.psm1`: dot-source catch block now preserves the original `ErrorRecord` via bare `throw` (was `throw $_`, which wrapped the error).
+- `{{ModuleName}}/{{ModuleName}}.psm1`: dot-source catch block now preserves the original `ErrorRecord` via bare `throw`. Previously the catch threw a new string (`"Unable to dot source ..."`), which wrapped the original exception in a fresh `ErrorRecord` and lost the underlying stack trace.
 
 [Unreleased]: https://github.com/tablackburn/PowerShellModuleTemplate/compare/v2026.04.29...HEAD
 [2026.04.29]: https://github.com/tablackburn/PowerShellModuleTemplate/releases/tag/v2026.04.29