Reconsider use of accessors

[klafbang]

Angular is not Java.

A lot of components make use of accessors. There are several reasons to not do that:

1. using accessors in ht .html is inefficient; when using a field directly, Angular can register observers, making this event-driven. When using methods, Angular needs to poll the method

2. if a computation is complex and can benefit from a method, make it functional and pass in required parameters; that way Angular can see when parameters change and the methods needs to be called instead of polling

3. Typescript has native getters/setters. Use these instead of Java-style accessor methods.

4. Angular's new (still in preview) signals are almost always better than methods