By main buttons I mean the "new game", "they win" and "we win" buttons.
They have in common that they scroll to the bottom of the view, to make
sure the user can immediately see their effect.
This change fixes two bugs:
1. The scrolling did not work reliably. While it would always scroll a
bit, it would usually not go to the bottom exactly. This meant that
most of the time the bottom digits were only half visible. Now it
scrolls reliably all the way.
2. When hitting the win buttons in rapid succession it was possible to
trigger both within a single redraw cycle. This caused the UI to set
a single rounds winner to both teams, which the round model rightly
rejected. Now, by the time the second event is registered, the button
has already been disabled, or the round been replaced by a new one.
This improves the design of the session view a lot. However, several
things still need to be done:
1. The rules section is not styled.
2. The session list is not styled.
3. The design is not responsive yet. This will take longer, as the base
view will need to be overhauled substantially to take advantage of
wider screens.
4. A light mode needs to be added.
The previous implementation only looked at the URL (and state) during
initialization. This allowed users to open a specific session via URL
(e.g. when reloading the page).
History navigation, however, was completely ignored. I.e. if the user
pressed the back button the URL would change, but the content would
remain the same.
This has now been corrected.
