Do not disturb notification icon in status bar

(Issue title)

Do not disturb icon in status bar

Summary

(Summarize the bug encountered, briefly and precisely) When active, the icon has the + sign but when do not disturb finishers the icon remains and has the + sign. The function works perfectly, just the icon does not change.

Steps to reproduce

(How one can reproduce the issue - this is very important) Set a do not disturb period. At the end of the period the icon remains.

What is the current behavior?

(What actually happens) See above

What is the expected correct behavior?

(What you should see instead) At the end of the period the icon should either disappear or change from a + to a - sign

Relevant logs and/or screenshots

(Paste any relevant logs - please use code blocks (```) to format console output, logs, and code as it's very hard to read otherwise.) (You can use adb logcat command to capture log of you device, when connected to a computer)

Possible fixes

(If you can, link to the line of code that might be the cause for this problem)