Unresponsive application can't be focused / can't force quit

[j-tai]

(1) Issue/Bug Description:

Unresponsive applications cannot be focused. Clicking the "Force Quit" or "Wait" button does nothing.

https://user-images.githubusercontent.com/45131430/181082020-51652179-a343-4a5e-b01b-c3bf2f7ab232.mp4

(2) Steps to reproduce (if you know):

Tiling may be either enabled or disabled.

1. Download sdl_repro.c.txt (rename to sdl_repro.c)
2. sudo apt install libsdl2-dev (to compile the example code)
3. gcc sdl_repro.c -lSDL2
4. ./a.out
5. Wait for the message "a.out" is not responding to show up
6. Try interacting with the application

(3) Expected behavior:

The "Force Quit" and "Wait" buttons should work.

(4) Distribution (run cat /etc/os-release):

NAME="Pop!_OS"
VERSION="22.04 LTS"
ID=pop
ID_LIKE="ubuntu debian"
PRETTY_NAME="Pop!_OS 22.04 LTS"
VERSION_ID="22.04"
HOME_URL="https://pop.system76.com"
SUPPORT_URL="https://support.system76.com"
BUG_REPORT_URL="https://github.com/pop-os/pop/issues"
PRIVACY_POLICY_URL="https://system76.com/privacy"
VERSION_CODENAME=jammy
UBUNTU_CODENAME=jammy
LOGO=distributor-logo-pop-os

(5) Gnome Shell version:

42.2-0ubuntu0.2pop1~1656366363~22.04~47f8ae4

(6) Pop Shell version (run apt policy pop-shell or provide the latest commit if building locally):

pop-shell:
  Installed: 1.1.0~1657300798~22.04~8275681
  Candidate: 1.1.0~1657300798~22.04~8275681
  Version table:
 *** 1.1.0~1657300798~22.04~8275681 1001
       1001 http://apt.pop-os.org/release jammy/main amd64 Packages
       1001 http://apt.pop-os.org/release jammy/main i386 Packages
        100 /var/lib/dpkg/status

(7) Where was Pop Shell installed from:

Installed by default on Pop!_OS

(8) Monitor Setup (2 x 1080p, 4K, Primary(Horizontal), Secondary(Vertical), etc):

2 x 1080p

(9) Other Installed/Enabled Extensions:

None (can reproduce with all other extensions disabled)

(10) Other Notes: