Give Wizards More Cantrip Slots

[Power Word, Haste]

Currently, wizards only get 4 cantrip slots. This sounds fine, as you can have 4 different cantrips - but there is an issue with that. If a cantrip is blocked by concentration, or if the action is otherwise interrupted while casting then you will lose that cast and it won't be refreshed. This means for offensive cantrips like flare or daze you ideally want to run 2 slottings of each, in case 1 gets blocked and can't be refreshed. This means sorcerers have a much greater variety of cantrips available to them compared to wizards, which is odd because that is counter to the usual sorc vs wizard design. Upping the wizard base cantrip amount to 6 or 8 slots would put them on par with sorcerer, and the cleric who has 6 cantrip slots too.