Added the facet count to the copy facet list button.

Also updated test to pass with new facet count output.

Fixes # 591

Type of change

New feature (non-breaking change which adds functionality
How Has This Been Tested?
[x] Local Pre-commit Checks
[x] CI/CD Build

Checklist

[x] My code follows the style guidelines of this project
[x] I have performed a self-review of my own code
[x] My changes generate no new warnings
[x] If applicable - I have commented my code, particularly in hard-to-understand areas
[x] If applicable - I have made corresponding changes to the documentation
[x] If applicable - I have added tests that prove my fix is effective or that my feature works
[x] If applicable - New and existing unit tests pass locally with my changes
[x] Any dependent changes have been merged and published in downstream modules

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Comparison is base (ec78791) 98.54% compared to head (d650841) 98.54%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## v1.1.0 #604 +/- ## ======================================= Coverage 98.54% 98.54% ======================================= Files 76 76 Lines 2744 2744 Branches 416 416 ======================================= Hits 2704 2704 Misses 40 40 ``` | [Flag](https://app.codecov.io/gh/esgf2-us/metagrid/pull/604/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=esgf2-us) | Coverage Δ | | |---|---|---| | [backend](https://app.codecov.io/gh/esgf2-us/metagrid/pull/604/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=esgf2-us) | `100.00% <ø> (ø)` | | | [frontend](https://app.codecov.io/gh/esgf2-us/metagrid/pull/604/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=esgf2-us) | `97.81% <100.00%> (ø)` | | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=esgf2-us#carryforward-flags-in-the-pull-request-comment) to find out more.

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esgf2-us / metagrid