#854: Fix Rancher Desktop path

[laert-ll]

This PR fixes #854

Implemented changes:

• Added fallback path resolution for Rancher Desktop CLI tools in ~/.rd/bin.
• Added warning message for first time install.

Clarification: Rancher Desktop creates ~/.rd/bin and links its CLI tools (docker, kubectl, rdctl) there only after its first GUI launch. Therefore in order to launch docker or kubectl using IDEasy, we added a warning message for when the user tries to launch it without having launched the GUI first.

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Testing instructions

1. Have a working Linux environment running.
2. Run ide kubectl and verify that the installation is successful that the warning appears.
3. Open Rancher Desktop from the application menu.
4. Run ide kubectl again and verify that it runs successfully.
5. Repeat for docker.

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[coveralls]

Coverage Report for CI Build 29005438306

Coverage decreased (-0.08%) to 72.104%

Details

• Coverage decreased (-0.08%) from the base build.
• Patch coverage: No coverable lines changed in this PR.
• 54 coverage regressions across 2 files.

Uncovered Changes

No uncovered changes found.

Coverage Regressions

54 previously-covered lines in 2 files lost coverage.

File	Lines Losing Coverage	Coverage
com/devonfw/tools/ide/tool/docker/Docker.java	45	4.63%
com/devonfw/tools/ide/tool/kubectl/KubeCtl.java	9	15.0%

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Coverage Stats

Relevant Lines:	16727
Covered Lines:	12571
Line Coverage:	75.15%
Relevant Branches:	7474
Covered Branches:	4879
Branch Coverage:	65.28%
Branches in Coverage %:	Yes
Coverage Strength:	3.18 hits per line

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💛 - Coveralls

[laert-ll]

Thank you for testing this @oanding-blrng and raising the virtualization issue with WSL!

After some discussion, we came to the conclusion that it's currently not possible to launch rancher-desktop on WSL due to virtualization problems and therefore the symlink creation cannot be simulated there. However this part doesn't need testing IMHO due to the fact that its behavior is already confirmed here. In order to test that specific part, I would simply link the binaries manually to where rancher-desktop would normally link them:

mkdir -p ~/.rd/bin
ln -s /opt/rancher-desktop/resources/resources/linux/bin/kubectl ~/.rd/bin/kubectl
ln -s /opt/rancher-desktop/resources/resources/linux/bin/docker  ~/.rd/bin/docker