Replace alertify with something better

[magicznyleszek]

Description

There are few things we want (that alertify doesn't have):

• sanitizing HTML
• better UX (e.g. mouse over should block disappearing of notifications)
• should be written in TypeScript (or at least have good typings)

[magicznyleszek]

From a quick research, these three seems to be good candidates:

• https://github.com/fkhadra/react-toastify
• https://github.com/timolins/react-hot-toast
• https://github.com/teodosii/react-notifications-component

[magicznyleszek]

We decided to try React Hot Toast 🥂

[duvld]

3961 is the intial PR and to avoid huge PRs, the remaining work is outlined below:

• Find page specific alertify overrides and replace them with notify
• Add override cases to notify or a similar utility function
• We use alertify to show dialogs as well, so we need to:
  • Create an extendable component for dialogs
  • Move the CSS over <-- might be a good time to update the styles and standar

[p2edwards]

Updated roadmap:

• 3961 updates the notify function to use toast instead

• 3972 escapes HTML in-place, by either switching to toast popups or wrapping old alertify dialog calls

• Next, replace alertify dialogs with our own modals and remove alertify. (this is kind of big! :) )