* dev: mobx for issues store * refactor: peek overview component * chore: update open issue button * fix: issue mutation after any crud action * chore: remove peek overview from gantt * chore: refactor code
* dev: mobx for issues store * refactor: peek overview component * chore: update open issue button * fix: issue mutation after any crud action * chore: remove peek overview from gantt * chore: refactor code