Update existing talent implementations

[Niphyr]

Update the implementations for the following talents using the new gamedata/scaling:

• [x] Circle of Healing
• [x] Divine Hymn
• [x] Divine Star
• [x] Halo
• [x] Holy Nova
• [x] Holy Word: Chastise
• [x] Holy Word: Salvation
• [x] Holy Word: Sanctify
• [x] Holy Word: Serenity
• [x] Mindgames
• [x] Prayer of Healing
• [x] Shadow Word: Death
• [x] Divine Image