Wrong window/project is closed on multi tasking mode

[isneezy]

Expected Behavior

if I go into multitask mode and close one of the multiple opened Akira windows/projects it should close the project that I chose to do so.

Current Behavior

If I go into the multitask mode and close one of the multiple opened Akira windows/projects it closes the wrong one.

Possible Solution

IDK

Steps to Reproduce (for bugs)

1. Open Akira
2. Draw any shape
3. Open any previously saved project
4. Enter the multi-task mode (SUPER+⬇️ on elementary os)
5. Click to close the first window where you drew the shape
6. Click on close without saving
7. Akira will close the window where the previously saved project was opened witch is the wrong one

Context

Screenshots of the Problem

Your Environment (for bugs)

• Akira Version: Latest Commit from master
• OS Info:
  Linux ivan-Latitude-E7450 5.4.0-42-generic Included forum link on readme #46~18.04.1-Ubuntu SMP Fri Jul 10 07:21:24 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
  NAME="elementary OS"
  VERSION="5.1.7 Hera"
  ID=elementary
  ID_LIKE=ubuntu
  PRETTY_NAME="elementary OS 5.1.7 Hera"
  LOGO=distributor-logo
  VERSION_ID="5.1.7"
  HOME_URL="https://elementary.io/"
  SUPPORT_URL="https://elementary.io/support"
  BUG_REPORT_URL="https://github.com/elementary/os/issues/new"
  PRIVACY_POLICY_URL="https://elementary.io/privacy-policy"
  VERSION_CODENAME=hera
  UBUNTU_CODENAME=bionic