fix: fixed display issue on close position

[jijicodes]

Description and Motivation

Fixed display issue when the user closes their position on the manage liquidity page. The issue was causing the entire page to crash.

Related Issues

Resolves #490

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Checklist:

• [x] I have read Migaloo's contribution guidelines.
• [x] My pull request has a sound title and description (not something vague like Update index.md)
• [x] All existing and new tests are passing.
• [x] I updated/added relevant documentation.
• [x] The code is formatted properly yarn lint.
• [x] The project builds and is able to deploy on Netlify yarn build.

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