Show new liquidation price when adding or removing margin

[kappacappa]

New feature request by private beta testers. The current and new liquidation prices can be shown in the add/remove margin modal for maximal clarity.

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Bounty

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[sungdark]

I'd like to claim this bounty. I'll implement the feature to show current and new liquidation prices in the add/remove margin modal.

[sungdark]

I'd like to claim this bounty. I've implemented the fix — the EditMargin modal now displays both the current and new liquidation prices for maximal clarity. PR: https://github.com/capofficial/client/pull/new/feature/show-current-liq-price

[sellimenes]

I'd like to request assignment for this bounty. I have a patch ready that shows the current liquidation price and fixes the projected liquidation price calculation in the Edit Margin modal so it uses the same liquidation-threshold formula as the Positions table.

[AnkushBL6]

I would like to request assignment for this bounty. I opened PR #110 with a focused fix that shows the current liquidation price and calculates the projected liquidation price using the same liquidation-threshold formula as the positions table.

[sellimenes]

Submitted a fix in PR #109: #109

[JeremyZeng77]

Hi, I opened a PR for this bounty and would like to request assignment/consideration: #159

It adds the current liquidation price alongside the existing new/projected liquidation price in the Edit Margin modal.

Payout preference if accepted: USDT TRC20 TWupTAoFjxR2VmqUUvzhfmUwXVZR6Kvz1Y, or PayPal fallback https://paypal.me/Jeremytsangchina.