Fix error handling when composing potions fail

Fix an issue where a player not having any more frags, would have it's gold still being withdrawn constantly from the bank.

Fix issue when getting back into the composing page would stop and error the extension.
Software should now run endlessly, everytime you enter the composing page until the button Stop is hit (or an error occurs :D).

Small addons and features added, including collect potions instead of just discarding it.
Extension menu, avoiding the old ugly menu at top right.
Keeps track even when page is reloaded so you don't lose progress like before.
Smart storage of selected template and option (discard or collect)
Error handling for when game is down or having connection issues

Tweaks to the system, as well as fixed a random infinite verify time.

fixed an issue where the gold cost for subsequent brews wasnt being calculated