#2206: Fix IDEasy title not properly shown on macOS

[Ali-Shariati-Najafabadi]

This PR fixes #2206

Implemented changes:

• On macOS, ide gui now launches the JavaFX process through a symlink named IDEasy that points to the real java executable, instead of exec-ing java directly. macOS derives the Dock/menu bar title from the launched executable's filename (this GUI has no native app bundle), so this makes the title read "IDEasy" instead of "java". No-op on Windows/Linux.
• Note: an earlier approach of setting System.setProperty("apple.awt.application.name", "IDEasy") in App.java was tried and verified (by building and running the GUI locally) to have no effect, since this GUI is pure JavaFX (Glass toolkit) and that property is only read by AWT's toolkit.

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Testing instructions

1. On macOS, run ide gui (or build the gui module and run com.devonfw.ide.gui.AppLauncher via the same exec:exec Maven invocation used by the gui commandlet).
2. Check the Dock and the menu bar (⌘+Tab app switcher) while the GUI is running: the title now shows "IDEasy" instead of "java".
3. Unit tests com.devonfw.tools.ide.tool.gui.GuiTest cover the executable resolution: a symlink named IDEasy is created and used on macOS, while Windows/Linux keep using the plain java executable unchanged.

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Checklist for this PR

• When running mvn clean test locally all tests pass and build is successful
• PR title is of the form #«issue-id»: «brief summary».
• PR top-level comment summarizes what has been done and contains link to addressed issue(s)
• PR and issue(s) have suitable labels
• Issue is set to In Progress and assigned to you or there is no issue (might happen for very small PRs)
• You followed all coding conventions
• You have added the issue implemented by your PR in CHANGELOG.adoc unless issue is labelled with internal
• You have not changed any dependency in pom.xml files or otherwise if runtime dependencies changed, you have updated our LICENSE.asciidoc
• You have formulated clear instructions on how to test your contribution under "Testing instructions"

[coveralls]

Coverage Report for CI Build 32151631791

Coverage increased (+0.04%) to 72.945%

Details

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

Uncovered Changes

No uncovered changes found.

Coverage Regressions

17 previously-covered lines in 1 file lost coverage.

File	Lines Losing Coverage	Coverage
com/devonfw/tools/ide/tool/gui/Gui.java	17	39.29%

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Coverage Stats

Relevant Lines:	17578
Covered Lines:	13372
Line Coverage:	76.07%
Relevant Branches:	7767
Covered Branches:	5116
Branch Coverage:	65.87%
Branches in Coverage %:	Yes
Coverage Strength:	3.23 hits per line

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💛 - Coveralls

[laim2003]

Thanks for your PR! 🙂 For some reason though, the title in the Dock still shows up as "java":

[Ali-Shariati-Najafabadi]

Thanks for your PR! 🙂 For some reason though, the title in the Dock still shows up as "java":

I've pushed a fix. Tested locally and the Dock now correctly shows "IDEasy". Could you pull the latest commit and recheck on your end?