* rework of the input handling, including different gamepad and keyboard
* rework of the input handling, including different gamepad and keyboard
* first version of a too complex inputHandler based on phaser3-merged-input
* removed useless control management and kept it simple for our use case, investigating to put out button_XX()
* renamed inputHandler to inputController
* aggregate directions and some action into a same method + fix menu return value
* added back repeated input feature on keeping down a key
* cleanup + return type
* fix submit/action doing two things simultaneously, still same behaviour as before
* extracted UI inputs out of battle-scene
* tab -> spaces
* tab -> spaces what about now github ?
* Minor text corrections to item descriptions.
* Update modifier-type.ts; minor text correction updates
* Update modifier-type.ts; further text re-corrections.
* Update modifier-type.ts; leftover re-corrections.
* Minor text corrections in modifier menu.
Implement trainer battles; add dialogue functionality; add random session seed for predictable random results; remove capitalization from text; add full party heal after every 10 waves
