Fix anvil-filters flakey test

[frano-m]

  1) [chromium] › e2e/anvil-catalog/anvilcatalog-filters.spec.ts:60:11 › AnVIL Catalog filter search › Workspaces tab › deselects filters through search bar 

    Error: expect(locator).toHaveClass(expected) failed

    Locator: getByTestId('filter-popover').getByTestId('filter-item').first()
    Expected pattern: /Mui-selected/
    Received string:  "MuiButtonBase-root MuiListItemButton-root MuiListItemButton-gutters MuiListItemButton-root MuiListItemButton-gutters css-1eyovvd"
    Timeout: 15000ms

    Call log:
      - Expect "toHaveClass" with timeout 15000ms
      - waiting for getByTestId('filter-popover').getByTestId('filter-item').first()
        19 × locator resolved to <div tabindex="0" role="button" data-testid="filter-item" class="MuiButtonBase-root MuiListItemButton-root MuiListItemButton-gutters MuiListItemButton-root MuiListItemButton-gutters css-1eyovvd">…</div>
           - unexpected value "MuiButtonBase-root MuiListItemButton-root MuiListItemButton-gutters MuiListItemButton-root MuiListItemButton-gutters css-1eyovvd"


      121 |  */
      122 | async function expectFilterItemSelected(filterItem: Locator): Promise<void> {
    > 123 |   await expect(filterItem).toHaveClass(/Mui-selected/);
          |                            ^
      124 | }
      125 |
      126 | /**
        at expectFilterItemSelected (/home/runner/work/data-browser/data-browser/e2e/anvil-catalog/anvilcatalog-filters.spec.ts:123:28)
        at selectFirstOption (/home/runner/work/data-browser/data-browser/e2e/anvil-catalog/anvilcatalog-filters.spec.ts:263:9)
        at /home/runner/work/data-browser/data-browser/e2e/anvil-catalog/anvilcatalog-filters.spec.ts:63:30

    attachment #1: screenshot (image/png) ──────────────────────────────────────────────────────────
    playwright-report/anvil-catalog-anvilcatalog-970e9--filters-through-search-bar-chromium/test-failed-1.png
    ────────────────────────────────────────────────────────────────────────────────────────────────

    Error Context: playwright-report/anvil-catalog-anvilcatalog-970e9--filters-through-search-bar-chromium/error-context.md

    attachment #3: trace (application/zip) ─────────────────────────────────────────────────────────
    playwright-report/anvil-catalog-anvilcatalog-970e9--filters-through-search-bar-chromium/trace.zip
    Usage:

        npx playwright show-trace playwright-report/anvil-catalog-anvilcatalog-970e9--filters-through-search-bar-chromium/trace.zip

    ────────────────────────────────────────────────────────────────────────────────────────────────

  1 failed
    [chromium] › e2e/anvil-catalog/anvilcatalog-filters.spec.ts:60:11 › AnVIL Catalog filter search › Workspaces tab › deselects filters through search bar 
  9 skipped
  47 passed (3.6m)