Upgrade to latest angular and slatejs versions

[dweggemans]

Could you please upgrade this library to support the latest angular and slate versions? I've tried to provide a pull request, but ran into some issues that I don't know how to resolve.

Thanks!

[pubuzhixing8]

I intend to upgrade latest version of slate recently, but it could be a long time because there are too much version to study and synchronize.
We need to make sure that these commits are stable.
Upgrading Angular to 16 is more easy, we'll complete it soon.

[dweggemans]

Any news or timeframe on these upgrades?

[BenRacicot]

Hi, yes I noticed that my npm is demanding slate-history@"^0.66.0"

npm ERR! Could not resolve dependency:
npm ERR! peer slate-history@"^0.66.0" from slate-angular@16.0.0

Here is from the readme (compared w latest)

"dependencies": {
    "direction": "^1.0.3",         →   ^2.0.1
    "is-hotkey": "^0.1.6",        →   ^0.2.0
    "slate": "0.67.1",                 →   0.94.1
    "slate-history": "0.66.0",  →   0.93.0
    "slate-angular": "1.6.5"    →   16.0.0
}