Define STATIC_FILES in LonaView like in Widget

[maratori]

I want to add style sheets to my view. Now I've found following solutions.

1. Replace default styles

app.add_static_file("lona/style.css", path="my-style.css")

2. Define fake widget (lona will do it's magic and incorporate all styles from all widgets to HTML)

class Fake(Widget):
    STATIC_FILES = [
        StyleSheet("my-style.css", "my-style.css")
    ]

3. Add link manually

app.add_static_file("my-style.css", path="my-style.css")

@app.route("/")
class MyView(LonaView):
    def handle_request(self, request):
        return HTML(
            "<link href='/static/my-style.css' rel='stylesheet'>",
        )

All solutions above looks hackish.
Let's add LonaView.STATIC_FILES like it is in widgets.
So I can just use following code to add style to my view.

@app.route("/")
class MyView(LonaView):
    STATIC_FILES = [
        StyleSheet("my-style.css", "my-style.css")
    ]

    def handle_request(self, request):
        ...

[fscherf]

@maratori Great idea! I never thought of that. Could you provide a pr with a prototype and update the documentation?

Edit: 2 and 3 are hackish, 1 is ok.

[maratori]

Created #134

[fscherf]

@maratori great! :)