User segment for users that haven't supported in budget

[bertocq]

Created not_supported_on_current_budget at UserSegment along with model
spec scenario and translation strings.

References

This is a backport from madrid's fork AyuntamientoMadrid#1369

Objectives

Create a segment that returns all users that haven't supported investments on current budget

Visual Changes (if any)

None

Notes

Query looks ugly but after trying in preproduction servers

users = Vote.where(votable_type: 'Budget::Investment', votable: Budget.current.investments).select(:voter_id).distinct.pluck(:voter_id)
User.active.where.not(id: users)

It became clear that for installations with more than half million users it would take an overkill time to complete the where.not query.

[voodoorai2000]

👏