Add check if canvas is enabled

[shawly]

Since FVTT 0.8.6 the canvas can be disabled per client so this call

lib-find-the-path/scripts/utility.js

Line 14 in 4519c32

canvas.grid.addHighlightLayer(this._name);

produces an error in the console when the canvas is disabled, since canvas.grid is undefined.

TypeError: Cannot read properties of undefined (reading 'addHighlightLayer')
[Detected 1 package: lib-find-the-path]
    at new FTPUtility (utility.js:14:15)
    at pathManager.js:515:29
    at Function._call (foundry.js:294:14)
    at Function.callAll (foundry.js:253:12)
    at Game.setupGame (foundry.js:5566:11)
    at async Game._initializeGameView (foundry.js:6498:5)
    at async Game.initialize (foundry.js:5430:5)

It might make sense to check if game.settings.get("core", "noCanvas") is enabled before executing the code within the "ready" hook

lib-find-the-path/scripts/pathManager.js

Line 495 in 4519c32

Hooks.on ("ready", () =>