Provide HTML Formatting for new Angular flow syntax, such as @if, @for, etc.

[sagarprectech]

Add format like a proper block of @if and @for. Currently, it is getting flattened into a single line.

[massic80]

...and @switch

[sagarprectech]

@massic80, I found a Temporary solution from the link below.

[https://stackoverflow.com/questions/77455062/indentation-with-angular-17-new-control-flow-in-vs-code]