Plaguebearer damage not visible in any part of PoB

Is your feature request related to a problem?
Currently, plaguebearer deals no damage when infecting. There is only a toggle between incubating (less damage) and infecting (no effect)

Describe the solution you'd like
Simply add an input for "max plaguebearer while infecting" and add chaos damage over time at 12% of the amount.

The max values per level are:
1 | 4000
2 | 5903
3 | 8655
4 | 12616
5 | 18299
6 | 26429
7 | 38027
8 | 54530
9 | 77962
10 | 98791
11 | 125046
12 | 158112
13 | 199725
14 | 252058
15 | 317825
16 | 400423
17 | 504097
18 | 634145
19 | 797189
20 | 1000000
21 | 1100000
22 | 1180000
23 | 1245000
24 | 1300000
25 | 1350000
26 | 1400000
27 | 1450000
28 | 1500000
29 | 1550000
30 | 1600000
31 | 1650000
32 | 1700000
33 | 1750000
34 | 1800000
35 | 1850000
36 | 1900000
37 | 1950000
38 | 2000000
39 | 2050000
40 | 2100000

At level 20 this gives 120,000 damage, unaffected by buffs to the player, but increased by the effects of debuffs such as Despair and Wither on the enemy.

Describe alternatives you've considered
Alternatively, allow the user to input the maximum plague value, and simply output the damage as mentioned above as 12% of the number entered.

Additional context

The issue names no files or tests; first locate the Plaguebearer skill, its incubating/infecting toggle, and the damage calculation entry point. Add the requested maximum-value input and 12% chaos damage-over-time behavior, then verify the listed level values and the level-20 example.