windscribe-cli disconnect should not exit with error if it's disconnected already

[johan456789]

Describe the bug

windscribe-cli disconnect exits with error if it's disconnected already.

OS and app information:

• OS: MacOS Version 15.6.1 (Build 24G90)
• App version: windscribe-cli v2.19.7

To Reproduce
Steps to reproduce the behavior:

1. start windscribe app without disconnecting
2. run windscribe-cli disconnect in terminal
3. the command exit with code 1

$ windscribe-cli disconnect; echo $?
{"tm": "2026-01-12 00:44:49.327", "lvl": "info", "mod": "cli", "msg": "=== Started ==="}
{"tm": "2026-01-12 00:44:49.327", "lvl": "info", "mod": "cli", "msg": "OS Version: \"MacOS Version 15.6.1 (Build 24G90)\""}
{"tm": "2026-01-12 00:44:49.327", "lvl": "debug", "mod": "cli", "msg": "CLI pid:  13128"}
{"tm": "2026-01-12 00:44:49.369", "lvl": "debug", "mod": "cli", "msg": "Connected to app"}
{"tm": "2026-01-12 00:44:49.370", "lvl": "info", "mod": "cli", "msg": "\"Already disconnected\""}
Already disconnected
1

Returning an error causes issues when scripting.

Expected behavior

Exit with code 0 representing success. The desired state is already achieved before the command so there's no need to return an error.