Improve documentation for enabling/disabling feature flags

[GeethaParthasarathy]

Describe the bug

Currently while I try to enable the feature flag for a particular feature in the Desktop Modeler there is no sufficient documentation to enable them in Mac OS.

Steps to reproduce

1. open the documentation to configure feature flags https://docs.camunda.io/docs/next/components/modeler/desktop-modeler/flags/#configuring-flags

2. Try to configure a feature flag in Mac OS.

3. We could see that the documentation lacks the following :

4. The way to reach the {USER_DATA}] or {APP_DATA_DIRECTORY} directory in Mac OS where the .json file could be added

5. Missing step to create a feature flag folder

6. Missing mention about restarting the app->,Once the .json file is added to the feature flag folder the app needs to be restarted completely for the changes to be effective

Expected behavior

All the above missing info should be documented therefore the users are finding it easy configure feature flags from Mac OS

• As a user I have a MacOS example showing me where to store the flags file
• As a user I can learn about app restart being required to activate flags

Environment

• OS: [e.g. MacOS 10.2]
• Camunda Modeler Version: [e.g. 5.24.0]
• Execution Platform: [e.g. Camunda 7, Camunda 8]

Additional context

No response

[nikku]

Let's pick this up as a follow-up action (post release).

[nikku]

Will be addressed via two PRs:

• Desktop Modeler Flags improvements camunda-docs#3899
• feat(modeler): clarify search path on MacOS camunda-docs#3900

[nikku]

Closing with both documentation PRs being merged.