Bump the dash-network group across 1 directory with 3 updates

Updates the requirements on [dash-mantine-components](https://github.com/snehilvj/dash-mantine-components), [dash-mui-charts](https://github.com/pip-install-python/dash-mui-charts) and [dash-emoji-mart](https://github.com/pip-install-python/dash-emoji-mart) to permit the latest version.

Updates `dash-mantine-components` from 2.7.0 to 2.8.0
- [Release notes](https://github.com/snehilvj/dash-mantine-components/releases)
- [Changelog](https://github.com/snehilvj/dash-mantine-components/blob/master/CHANGELOG.md)
- [Commits](snehilvj/dash-mantine-components@2.7.0...2.8.0)

Updates `dash-mui-charts` to 1.4.0
- [Release notes](https://github.com/pip-install-python/dash-mui-charts/releases)
- [Changelog](https://github.com/pip-install-python/dash-mui-charts/blob/main/CHANGELOG.md)
- [Commits](pip-install-python/dash-mui-charts@v1.4.0...v1.4.0)

Updates `dash-emoji-mart` to 0.2.1
- [Release notes](https://github.com/pip-install-python/dash-emoji-mart/releases)
- [Changelog](https://github.com/pip-install-python/dash-emoji-mart/blob/main/CHANGELOG.md)
- [Commits](pip-install-python/dash-emoji-mart@v0.2.1...v0.2.1)

---
updated-dependencies:
- dependency-name: dash-mantine-components
  dependency-version: 2.8.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: dash-network
- dependency-name: dash-mui-charts
  dependency-version: 1.4.0
  dependency-type: direct:production
  dependency-group: dash-network
- dependency-name: dash-emoji-mart
  dependency-version: 0.2.1
  dependency-type: direct:production
  dependency-group: dash-network
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

requirements.txt

@@ -26,7 +26,7 @@ dash[fastapi]==4.4.1  # COMPAT-MATRIX: dash
 # --- Docs shell ------------------------------------------------------------
 # NOTE: python-frontmatter 1.3+ imports typing.TypeGuard, so running the docs
 # site needs Python >= 3.10. The dash_leaflet2 PACKAGE needs only >= 3.9.
-dash_mantine_components==2.7.0
+dash_mantine_components==2.8.0
 dash-iconify==0.1.2
 # markdown2dash 0.1.2 declares `gunicorn>=21.2.0,<22.0.0` — a markdown parser
 # pinning a WSGI server, and directly against the CVE-driven gunicorn>=23 floor
@@ -64,7 +64,7 @@ requests>=2.31
 # dash-mui-charts powers the TreeViewPro tile browser on /tile-layers-pro. That
 # one control is an MUI X Pro component: without MUI_PRO_API_KEY in the env it
 # renders with a watermark, and the rest of the page is unaffected.
-dash-mui-charts>=1.2.3
+dash-mui-charts>=1.4.0
 
 # --- Docs-only showcase deps -----------------------------------------------
 # Neither is needed by the dash_leaflet2 package — only by the pages named
@@ -78,7 +78,7 @@ dash-mui-charts>=1.2.3
 # index ever lacks it, pip fails loudly at install rather than importing a
 # broken build at runtime.
 #   Used by: /emoji-iconify, /easy-button
-dash-emoji-mart>=0.0.5
+dash-emoji-mart>=0.2.1
 # flexlayout-dash: 1.1.0 renamed the import `dash_flex_layout` ->
 # `flexlayout_dash` and fixed a re-mount storm. The floor is load-bearing —
 # docs/walking-sim/example.py does `import flexlayout_dash as dfl`, which