Bumps [tui](https://github.com/fdehau/tui-rs) from 0.17.0 to 0.18.0.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a href="https://github.com/fdehau/tui-rs/releases">tui's releases</a>.</em></p>
<blockquote>
<h2>v0.18.0</h2>
<h3>Features</h3>
<ul>
<li>Update <code>crossterm</code> to <code>0.23</code>.</li>
</ul>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a href="https://github.com/fdehau/tui-rs/blob/master/CHANGELOG.md">tui's changelog</a>.</em></p>
<blockquote>
<h2>v0.18.0 - 2022-04-24</h2>
<h3>Features</h3>
<ul>
<li>Update <code>crossterm</code> to <code>0.23</code></li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="e71faa988e"><code>e71faa9</code></a> Release v0.18.0</li>
<li><a href="ed0ae81aae"><code>ed0ae81</code></a> chore: update crossterm to v0.23 (<a href="https://github-redirect.dependabot.com/fdehau/tui-rs/issues/598">#598</a>)</li>
<li><a href="a61b078dea"><code>a61b078</code></a> chore: fix clippy warning (<a href="https://github-redirect.dependabot.com/fdehau/tui-rs/issues/601">#601</a>)</li>
<li>See full diff in <a href="https://github.com/fdehau/tui-rs/compare/v0.17.0...v0.18.0">compare view</a></li>
</ul>
</details>
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</details>
## Description
Replace `\t` with whitespace in values, to separated vector values.
## Motivation and Context
Vector values (eg, net.ipv4_mem) are separated by `\t`, but tui could not display `\t` correctly.
Fix https://github.com/orhun/systeroid/issues/14.
## How Has This Been Tested?
Visually checked
## Screenshots / Logs (if applicable)
Before:
![sc-20220419-122855](https://user-images.githubusercontent.com/24709398/163920309-756a9334-252f-4901-9231-a6183f91061d.png)
After:
![sc-20220419-122941](https://user-images.githubusercontent.com/24709398/163920378-611f6597-0ae8-40e1-95c8-1c8039473254.png)
## Types of Changes
<!--- What types of changes does your code introduce? Put an `x` in all the boxes that apply: -->
- [X] Bug fix (non-breaking change which fixes an issue)
- [ ] New feature (non-breaking change which adds functionality)
- [ ] Breaking change (fix or feature that would cause existing functionality to change)
- [ ] Documentation (no code change)
- [ ] Refactor (refactoring production code)
- [ ] Other <!--- (provide information) -->
## Checklist:
<!--- Go over all the following points, and put an `x` in all the boxes that apply. -->
- [X] My code follows the code style of this project.
- [ ] I have updated the documentation accordingly.
- [X] I have formatted the code with [rustfmt](https://github.com/rust-lang/rustfmt).
- [X] I checked the lints with [clippy](https://github.com/rust-lang/rust-clippy).
- [ ] I have added tests to cover my changes.
- [ ] All new and existing tests passed.