Bump the app version

Fix the "Developer tools" menu item

Set a display name for TLDR pages

Manually install `node-gyp` on Windows

Also keep the .deb package as an artifact from CI

Fix bug which stopped Find from working when no frames are present

Ligatures: Refactor `findInternal()` for clarity

Squashed commit of the following:

commit 9a9182d
Author: Simon Edwards <simon@simonzone.com>
Date:   Tue Nov 26 22:19:52 2019 +0100

    Fix up the keyboard shortcut unit tests on macOS

commit bcb3d42
Author: Simon Edwards <simon@simonzone.com>
Date:   Tue Nov 26 21:58:01 2019 +0100

    Set the node version for all platforms

commit f644d06
Author: Simon Edwards <simon@simonzone.com>
Date:   Mon Nov 25 21:53:21 2019 +0100

    Don't stop on a bad `dir`

commit ea6f8b1
Author: Simon Edwards <simon@simonzone.com>
Date:   Mon Nov 25 21:15:54 2019 +0100

    Get more info about the gyp set up

Don't strip out optional dependencies when packaging

Resize the internal rows after resize and prevent rubbish from remaining