Quadratic Voting

[jpaulet]

Implement support for "Quadratic voting" in the UI-components.

When this voting type is selected, the voting page should allow users to split its voting power among X options by .

Acceptance criteria (v1):

• [ ] Show a "X credits remaining"
• [ ] Add a "+" and "-" button on each option.
• [ ] Add the nº of votes and the credits used. Eg: 1 (1 credit), 2 (4 credits), 3 (9 credits)... Update the "X credits remaining".
• [ ] Add a "Info" section explaining how the QV works.

Visual example (not approved):

For reference: https://www.economist.com/interactive/2021/12/18/quadratic-voting