[Bug] External inline tools shortcut not working

[sis-dk]

Describe a bug.
So I created an inline tool and gave it a getter function 'shortcut' that returns a key combination string.

export default class TextConverter {
    static get isInline() {
        return true;
    }

    get shortcut() {
        return 'CMD+D';
    }

   /** render, surround and checkState function... */
}

But the shortcut is not registered.

src/components/modules/toolbar/inline.ts:578 has this piece of code

if (internalTools.includes(toolName)) {
     shortcut = this.inlineTools[toolName][Tools.INTERNAL_SETTINGS.SHORTCUT];
} else if (toolSettings && toolSettings[Tools.USER_SETTINGS.SHORTCUT]) {
     shortcut = toolSettings[Tools.USER_SETTINGS.SHORTCUT];
}

if (shortcut) {
     this.enableShortcuts(tool, shortcut);
}

toolSettings has my external inline tool in it but not directly under toolSettings
toolSettings looks like this
{ class: { sanitize, ... } }
So the check 'toolSettings && toolSettings[Tools.USER_SETTINGS.SHORTCUT]' would fail.

What am I doing wrong here?

Steps to reproduce:
Just create an external inline-tool and give it a shortcut key

Expected behavior:
Shortcut should be registered

Screenshots:
none

Device, Browser, OS:
Macbook, Chrome(Electron), MacOS

Editor.js version: 2.17.0