fix(cap): Allow xs-app.json to be stored in project root instead of webapp

[marcelschork]

Fix for #88

[CoPilot]
This pull request includes a change to the generators/model/index.js file to improve the handling of the xs-app.json file path for SAP applications. The most important change is the addition of a check to determine whether the xs-app.json file is located in the webapp folder or the project root.

Improvement to file path handling:

• generators/model/index.js: Added logic to check if xs-app.json is in the webapp folder or the project root, ensuring the correct path is used.

[nicoschoenteich]

Hi @marcelschork, I just want to make sure I understand this correctly: Is this to account for the possibility that a user might manually move the xs-app.json from projectRoot/uimodule/webapp/ to projectRoot/uimodule/?

[marcelschork]

Hey @nicoschoenteich ,
I ran into this issue while using the generator-ui5-ts-app. I always use this template because it is more sophisticated/opinionated than the one coming from open-ux-tools. Then I manually copied xs-app.json from the previously created uimodule folder to my newly created TS app.
Since I put it always into the root of the UI5 app like other config files, I ended up with this error.

I remember also other templates in BAS, where this file is stored in the root. That's why I thought, we can make the CAP subgenerator just a bit more flexible.

[nicoschoenteich]

Ok, this makes sense. Thanks a ton for your contribution!