Fix many unique staves with Attack block instead of Spell block implicit

[Blitz54]

Fixes #8579

Description of the problem being solved:

The base type "Quarterstaff" for annihilating light was changed from 18% attack block to 22% spell block, but the current variant for the unique was using 22% attack block. Quick fix.

Steps taken to verify a working solution:

After screenshot:

[HeffU]

Stumbled upon another staff implicit issue and it seems like uniques with certain bases had their implicit set to attack block instead of spell block.

Patch notes read: "Imperial Staff, Lathi, and Primordial Staff now have +25% Chance to Block Spell Damage while wielding a Staff (previously +18%)."

However, in the merged commit we can see that the uniques from the above listed bases got their values all set to Attack block rather than Spell block.

Maybe this PR can be changed to apply to all of the affected uniques?
(I don't mind doing it but since you already had this one up I figured I'd check here first)