settings still not updated: JsonMerger not writing even if target file not exists

[hohwille]

Related to #432 settings are still not updated/created in some cases:

We discovered a bug here:

ide/configurator/src/main/java/com/devonfw/tools/ide/configurator/merge/JsonMerger.java

Line 61 in e451a41

if (status.updated) {

So we want to avoid overriding files if there are no changes. However, currently this also applies when there was no setup file and the target file also does not exist and no variable has been resolved. This if statement also needs to consider if the target file does not exist and in that case always call save to save the file.

Therefore this bug is not VS Code specific but applies for all IDEs if JSON configuration files are used. As this is rarely the case for Eclipse this feature seems to be not properly tested and therefore it only was found now with VS Code.
We should first create a unit-test (failing) and then fixing it by adding the actual bug-fix (red/green pattern) to avoid future issues with things like this.