Bugfixes for v421

[SeeSharpSoft]

No description provided.

[Copilot]

Pull request overview

Bugfix-focused PR for the v4.2.1 release line, addressing stability issues in settings access, issue submission, and link handling.

Changes:

• Refactored CsvEditorSettings getters to read from the internal OptionSet directly (instead of getState()).
• Hardened GitHub issue submission by extracting and testing a non-empty “search needle” derivation to avoid GitHub 422 validation failures.
• Adjusted CsvPlugin.openLink threading behavior and updated the changelog/test suite accordingly.

Reviewed changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
src/test/java/net/seesharpsoft/intellij/plugins/csv/settings/CsvEditorSettingsProviderTest.java	Simplifies testApply assertions (but currently reduces verification and cleanup).
src/test/java/net/seesharpsoft/intellij/plugins/csv/CsvGithubIssueSubmitterTest.java	Adds unit coverage for searchExistingIssuesNeedle(...).
src/main/java/net/seesharpsoft/intellij/plugins/csv/settings/CsvEditorSettings.java	Switches many getters from getState() to direct myOptions access.
src/main/java/net/seesharpsoft/intellij/plugins/csv/CsvPlugin.java	Changes threading strategy when opening settings vs. browsing links.
src/main/java/net/seesharpsoft/intellij/plugins/csv/CsvGithubIssueSubmitter.java	Introduces searchExistingIssuesNeedle(...) and uses it in search.
CHANGELOG.md	Documents the fixes/issues for v4.2.1.

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