Angular Expressions and Template Expressions Refactor

[ghaschel]

Rewrite and update the typescript base patterns for Angular Expressions and Template Expressions Pattern Matching:

• Working as before
  • Angular Expressions and Template expressions
    • Supporting non-null assertion operator (property!.value)
    • Supporting safe-navigation operator (property?.value)
    • Supporting nullish coalescing operator (condition ?? value)
    • Not breaking the highlighting when a ";" is not added before the HTML element attribute closing quote
  • String interpolation
    • class="card {{anotherClass}}
    • class="card {{condition ? 'rounded' : 'squared'}}"