Take Screenshot in MultiMonitor Setup by following the cursor

Before creating a new issue, see list of [known
issues](https://copyq.readthedocs.io/en/latest/known-issues.html).
Yes, there is https://github.com/hluk/CopyQ/issues/1227. But, that old one is for Win10 and This one for Linux.
**Describe the bug**
A clear and concise description of what the bug is.
I have 3 monitors setup and I want to take the screenshot where my cursor is because copyq only take screenshot on the primary monitor
**To Reproduce**
Steps to reproduce the behavior:
1. Go to system tray
2. Click on take screenshot/ assign screenshot keyboard by go to shortcut tab and assign the take screenshot command

**Expected behavior**
I want to take a screenshot according to where my cursor located and if possible we can annotate (add circle/colored line) the image on the fly.

**Screenshots**
If applicable, add screenshots to help explain your problem.

**Version, OS and Environment**
CopyQ Clipboard Manager v5.0.0~focal
Qt: 5.12.8
KNotifications: 5.68.0
Compiler: GCC
Arch: x86_64-little_endian-lp64
OS: Ubuntu 20.04.3 LTS