New features:
* added the ability to set the default target priority (unlocked after vision 3)
* added a "refocus" button for when you lose, it restarts the scenario but with slightly reduced stats (this replaces auto difficulty)
* refocusing will reduce the enemy stats by 5% each time, winning the scenario will increase stats by 4% (min stats: 70%, max stats: 100%)
Polish:
* removed auto difficulty from the settings menu (it is now part of the "refocus" system)
* target priority is now unlocked much earlier (vision 1)
* reduced the duration of the "victory" and "defeat" pop-ups
* added tooltips and changed the wording on a few buttons
* rearranged some buttons on the scenario selection and in-scenario exit menus
* removed the "map select" button from the skills menu
* renamed "fall asleep" to "begin" (I just wasn't happy with how it felt. I will add better flavor text for all the buttons soon)
Balance:
* increased water towers range to 3 (was 2.5)
* increased base wet slow to 30% max (was 20%)
* increased wind tower base attack speed to 8 (was 3)
* increased exp bonus from unspent skill points to +2% (was 1%)
* increased the difficulty of vision 0
* increased the difficulty of vision 1
* decreased the difficulty of vision 7
