#1966: Support separate VSCodium plugins folder

[laert-ll]

This PR fixes #1966

Related: ide-settings PR#87

Implemented changes:

• Added Vscode.getPluginsConfigPath(): the VSCodium edition reads plugins from $IDE_HOME/settings/vscodium/plugins, falling back to $IDE_HOME/settings/vscode/plugins when that folder doesn't exist.

• Removed the leftover VSCodium plugin error-suppression.
• Added VscodeTest cases for folder selection + fallback.

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Testing instructions

1. Set VSCODE_EDITION=vscodium in $IDE_HOME/settings/ide.properties.
2. Copy over the $IDE_HOME/settings/vscodium/plugins folder from the ide-settings repository if ide-settings PR#87 not merged yet.
3. Run ide vscode and confirm those (47) plugins install.
4. Fallback case: remove settings/vscodium/plugins/, run again and confirm it now installs from $IDE_HOME/settings/vscodium/plugins (7 incompatible plugins are expected to fail)

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[coveralls]

Coverage Report for CI Build 27561107228

Coverage increased (+0.04%) to 71.14%

Details

• Coverage increased (+0.04%) from the base build.
• Patch coverage: No coverable lines changed in this PR.
• 4 coverage regressions across 1 file.

Uncovered Changes

No uncovered changes found.

Coverage Regressions

4 previously-covered lines in 1 file lost coverage.

File	Lines Losing Coverage	Coverage
com/devonfw/tools/ide/tool/vscode/Vscode.java	4	86.11%

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Coverage Stats

Relevant Lines:	15873
Covered Lines:	11785
Line Coverage:	74.25%
Relevant Branches:	7072
Covered Branches:	4538
Branch Coverage:	64.17%
Branches in Coverage %:	Yes
Coverage Strength:	3.15 hits per line

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💛 - Coveralls

[AdemZarrouki]

tested with GraalVM

$ "C:\Users\projects\IDEasy\workspaces\main\IDEasy\cli\target\ideasy.exe" vscode
Start: Configuring workspace test for IDE vscode
Successfully ended step 'Configuring workspace test for IDE vscode'.
No CVEs found for version 1.121.03429 of tool vscode/vscodium.
Installing Plugins 100% [=====================================================================================] 47/47 Plugins (0:00:00 / 0:00:00) ? Plugins/s
Successfully completed ide (vscode)

when deleting $IDE_HOME/settings/vscodium/plugins 7 plugins fail

[hohwille]

@laert-ll thanks for your PR. All great and ready for merge. 👍