Upgrade to latest Angular

[MrCsabaToth]

Is your feature request related to a problem? Please describe.
Currently the app is Angular 6.1 based. Before tackling any feature requests (although merging my outstanding PR) we should upgrade to latest Angular.

Describe the solution you considered
I was looking at https://update.angular.io/?l=2&v=6.1-15.0
I'd follow the link bellow and perform the 9 major upgrades step-by-step

[andmenegaz]

Hey guys,
Recently, Firebase made a few changes in their policy and now they don't accepted Node 10 anymore.
So I upgrade my fork to Angular 9 and Node 14, this is a fork a forked project, but I'll try to create a PR to this changes.
https://github.com/andmenegaz/devfestsul2022

[neojato]

Accepted PR #45 to move this project onto Angular 9.

@MrCsabaToth do you mind updating PR #31 to sort out the merge conflicts? Thanks in advance!

[MrCsabaToth]

Accepted PR #45 to move this project onto Angular 9.

@MrCsabaToth do you mind updating PR #31 to sort out the merge conflicts? Thanks in advance!

I definitely should. I'll message here if when I get to it (no ETA). But we have an upcoming DevFest in less than two weeks and I may give it a go.