Angular upgrade v18

[gsambrotta]

Here is the upgrade to angular 18. Issue ref: #476 - In the issue, it can be found a good list of the commands used to upgrade.

HOW TO TEST IT:

• You will need node v.18+ to test this branch
• after checking this branch out, remember to update node packages npm i
• If you get any error of incompatible version or packages to be updated, I would suggest clearing the cache of NPM packages or even deleting package-lock.json (last resource), if errors persist.
• You can check the preview of this branch here: https://kendraio-app-git-angular-upgrade-18-kendraio.vercel.app/
• Below you can see the main visual difference between v.16 and v.18 Everything else should be the same.

What is missing:

• [x] Fix Ag Grid / Issue with custom components
• [x] Fix small details of UI
• [x] Fix/Double check Forms
• [x] Leaflet issue
• [ ] Material UI not apply to widget Array Type

See screenshots: AgGrid do not display custom components and do not show any error v18

v15

Material UI padding is slightly wrong: v18

v15

Forms (or material UI?) v18

v15

Leaflet issue: v18

Widget Form Issue: v18