Version 0.0.4: more quality of life improvements — Forgotten Mines Steam update #1227842

Just little adjustments on the UI to make the experience of the player better on Forgotten Mines demo. - Flammable Warning on item tooltip. Before the game just showed a tiny little symbol on the superior line. Now, added to that, there is a red "Flammable" label; - Now, when flammable equipment burn on the middle of the combat, a pop up informs the player what type of equipment has burned away; - When the player clicks on a button that needed to be holded, a warning shows up to tell the player to hold the button; - Now, when a unit levels up when still selected, it'll auto deselect;