[WP/DoK] Put Divine Light back as a single target absorb

[Mvl130]

I think Divine Light/Soul Shielding would be better off as a single target absorb with no cooldown, as they used to be

The reasons for this are as follow :

- Currently being a party wide ability, its effect is in a fair amount of circumstances under-used, meaning roughly half of your party is in the backline, not taking damage, while some frontliners are being heavily targeted, - you cannot decide to specifically protect the frontliners being focused, you can only put an "average" absorb effect on everyone, which is going to simply expire on about half of your party as they are not being attacked ; this feels like a waste, which it is

- Aside from being inconvenient in that kind of circumstances, party wide effect also implies a lower skillcap : as a single target absorb with no cooldown, you'd have to carefully manage the ally selection and the RF cost ; as a party wide effect with a 40cd cooldown, you simply press the button from time to time, which I think seriously dumbs down the management of this ability

- For Shield healers, now that a fair amount of their healing is affected by healing debuffs, absorb effect can become a way to bypass/counter said debuffs. If as a shield healer you or an ally are affected by a heal debuff, you can decide on the moment to prioritize the repeated use of this single target absorb, instead of wasting ressources into life-taps. This would open more options for these specs for that kind of circumstances, increasing skillcap and adaptability