#1938: fixed GUI to allow usage outside of project

[hohwille]

This PR fixes #1938

Implemented changes:

• override Gui.isIdeHomeRequired() to return false
• actual fix was already done by PR #1976: extend tool commandlet installation logic #2144

---

Testing instructions

Please add conscise, understandable instructions on how a reviewer can test/verify the functionality of your contribution here:

1. cd $IDE_ROOT
2. ide gui

---

Checklist for this PR

Make sure everything is checked before merging this PR. For further info please also see
our DoD.

• When running mvn clean test locally all tests pass and build is successful
• PR title is of the form #«issue-id»: «brief summary» (e.g. #921: fixed setup.bat and not feature/921 fixed setup.bat). If no issue ID exists, title only.
• PR top-level comment summaries 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 31501090824

Coverage increased (+0.001%) to 72.895%

Details

• Coverage increased (+0.001%) from the base build.
• Patch coverage: No coverable lines changed in this PR.
• 20 coverage regressions across 1 file.

Uncovered Changes

No uncovered changes found.

Coverage Regressions

20 previously-covered lines in 1 file lost coverage.

File	Lines Losing Coverage	Coverage
com/devonfw/tools/ide/tool/gui/Gui.java	20	16.22%

---

Coverage Stats

Relevant Lines:	17548
Covered Lines:	13341
Line Coverage:	76.03%
Relevant Branches:	7757
Covered Branches:	5105
Branch Coverage:	65.81%
Branches in Coverage %:	Yes
Coverage Strength:	3.23 hits per line

---

💛 - Coveralls