[backport] Chat: Use Ctrl-A for 'select all' again (instead of Ctrl-B)
Backport of 783959a6810b to branch ui-scaling by sheepluva
Directory for automated tests to test the engine.
Run `ctest` in the root directory of this repository to run all tests.
Run `ctest -R <test name>` to run only the test with the given name.
This requires you to have CMake.