Opening a file/folder with Brackets Electron opens a new instance of the application every time

[DevKishan]

Prerequisites

• Is this Brackets-Electron specific problem (did you test it with latest brackets build)?
  Yes, this problem is specific to Brackets Electron as other editors like atom, sublime text or gedit handle it properly. I have tested it with the latest version of Brackets Electron.

Description

[Description of the bug or feature]
File/Folder -> Right Click -> Open With Brackets Electron opening new instance of this application every time. Ideally it should open the file in current active instance but instead of that it creates a new instance.

Versions

Release 1.10 experimental build 1.10.3 (master 4d03041)
[Please include the OS and what version of Brackets-Electron you're running.]
OS : Linux Mint 18.3 Cinnamon
Bracket Electron: Release 1.10

Steps to Reproduce

1. Right click on a file
2. Open with bracket electron
3. A new window opens.
4. Right click on another a file
5. Open with bracket electron
6. Instead of using already opened window of bracets electron, new window of brackets electron is created.
   Expected behavior: [What you expected to happen]
   New file/folder should open in the same window instead of new one.
   Actual behavior: [What actually happened]
   New file/folder are being opened in new window.