Calculate DPS of skills which have a partial uptime

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Is your feature request related to a problem?

enabling things like Berserk, Vaal Haste and other skills which are not up 100% of the time gives a poor indication of the builds overall DPS.

Describe the solution you'd like

When enabling a partial uptime skill (like Berserk), POB could calculate (or provide manual input) the expected uptime of the skill.

e.g if skill is up for 10 seconds and then down for 10 it would have an uptime of 50%, so maybe a box next to the skills with an "uptime" percentage where a user could manually tweak it could be a quick solution.

Berserk uptime calculation is being worked on; but i saw no indication of this being used to uptime the Total DPS
https://github.com/PathOfBuildingCommunity/PathOfBuilding/pull/4902

Describe alternatives you've considered

You could just enable it and see how much you have with and without, but it would be neat to see some average automatically calculated into POB, as of now putting things like berserk and vaal haste in your build will give a twisted view of your builds DPS

Additional context

No response

Start by reviewing pull request #4902, which the issue identifies as related to Berserk uptime calculation, and trace how partial-uptime skills currently affect DPS. Define how calculated or manually entered uptime should be applied, then verify that skills such as Berserk and Vaal Haste produce an average DPS rather than only their fully enabled value.