docs: Cleanup EEA obsolete projects and update info about the EEA Mai…

…n Website

README.md

@@ -157,8 +157,7 @@ Input components, to be reused in the form library
 
 ### Themes
 
-- [volto-sustainability-theme](https://github.com/eea/volto-sustainability-theme) - Volto Theme for "Sustainability transitions, EEA-Eionet platform"
-- [volto-ims-theme](https://github.com/eea/volto-ims-theme) - Volto theme for "European Environment Agency's Indicator Management System"
+- [volto-eea-website-theme](https://github.com/eea/volto-eea-website-theme) - Volto Theme for [European Environment Agency web sites](https://www.eea.europa.eu/en)
 - [volto-forests-theme](https://github.com/eea/volto-forests-theme) - Volto theme for "Forest Information System For Europe"
 - [volto-energy-theme](https://github.com/eea/volto-energy-theme) - Volto theme for "Climate and energy in the EU"
 - [volto-quanta](https://github.com/plone/volto-quanta) - A new theme for Volto, right now only styles a few form controls
@@ -238,8 +237,8 @@ Input components, to be reused in the form library
 - [Comune di Vernio](https://www.comune.vernio.po.it/) (Website of the Municipality of Vernio. Developed by [RedTurtle](https://www.redturtle.it), 2021)
 - [Debabarreneko mankomunitatea](https://debabarrena.eus/eu) (Website of the Commonwealth of Debabarrena, community of municipalities to centralize waste handling services, developed by [CodeSyntax](https://www.codesyntax.com/en), 2022)
 - [Debako Udala / Ayuntamiento de Deba](https://www.deba.eus/eu) (Website of the municipality of Deba, developed by [CodeSyntax](https://www.codesyntax.com/en), 2022)
-- [EEA-IMSv4](https://www.eea.europa.eu/en/analysis/indicators) (EEA Indicator Management System v4. Developed by [Eau de web](https://eaudeweb.ro) for the European Environmental Agency, 2021)
 - [Energy Climate Union portal for Europe](https://climate-energy.eea.europa.eu/) (Thematic website focusing on European strides towards mitigating climate change, developed by [Eau de Web](https://eaudeweb.ro/), 2020)
+- [European Environment Agency](https://www.eea.europa.eu/en) (Website of the European Environment Agency. Developed by [Eau de Web](https://eaudeweb.ro), 2023)
 - [Excellence at Humboldt-Universität zu Berlin](https://www.alles-beginnt-mit-einer-frage.de) (Website for the excellence initiative of the [Humboldt University Berlin](https://www.hu-berlin.de/de), developed by [kitconcept GmbH](https://kitconcept.com), 2019)
 - [Forest Information System for Europe](https://forest.eea.europa.eu) (Thematic website focusing on European forests, developed by [Eau de Web](https://eaudeweb.ro/), 2019)
 - [Forschungszentrum Jülich](https://www.fz-juelich.de/de) (Website for Forschungzentrum Jülich, which is one of the largest research institutions in Europe, developed by [kitconcept GmbH](https://kitconcept.com), 2022)
@@ -274,8 +273,8 @@ The following websites have been built with Volto. You can find their complete s
 - [Freshwater Information System for Europe](https://github.com/eea/freshwater-frontend) - Volto project for [Freshwater Information System for Europe website](https://water.europa.eu/freshwater)
 - [European Industrial Emissions Portal](https://github.com/eea/industry-frontend ) - Volto project for [European Industrial Emissions Portal website](https://industry.eea.europa.eu)
 - [Biodiversity Information System for Europe](https://github.com/eea/bise-frontend) - Volto project for [Biodiversity Information System for Europe website](https://biodiversity.europa.eu)
-- [Sustainability transitions, EEA-Eionet platform](https://github.com/eea/sustainability-frontend) - Volto project for [Sustainability transitions, EEA-Eionet platform website](https://www.eea.europa.eu/en/topics/at-a-glance/sustainability/)
-- [EEA Indicator Management System](https://github.com/eea/ims-frontend) - Volto project for [EEA Indicator Management System site](https://www.eea.europa.eu/en/analysis/indicators)
+- [EEA Main Website frontend](https://github.com/eea/eea-website-frontend) - Plone 6 Volto frontend for [European Environment Agency](https://www.eea.europa.eu/en)
+- [EEA Main Website backend](https://github.com/eea/eea-website-backend) - Plone 6 backend for [European Environment Agency](https://www.eea.europa.eu/en)
 - [Climate and energy in the EU](https://github.com/eea/climate-energy-frontend) - Volto project for [Climate and energy in the EU website](https://climate-energy.eea.europa.eu)
 - [volto-bise](https://github.com/eea/volto-bise) - A Volto project packaged as an addon. It provides Theming using a razzle.extend.js provided alias.
 - [design-volto-theme](https://github.com/RedTurtle/design-volto-theme) Volto theme for Italian Public Administration
@@ -284,6 +283,7 @@ The following websites have been built with Volto. You can find their complete s
 - [2023.ploneconf.org](https://github.com/plone/ploneconf.org/tree/2023) - Volto project for [Plone Conference 2023 site](https://2023.ploneconf.org)
 - [plone.org.br](https://github.com/plonegovbr/plone.org.br) - Volto project for the [Brazilian Plone Community](https://plone.org.br)
 - [nsw-design-system-plone6-kit](https://github.com/pretagov/nsw-design-system-plone6-kit) - NSW Design System Plone 6 Kit Volto project for [NSW.gov.au sites](https://digitalnsw.pretagov.com.au/)
+- [volto-eea-design-system](https://github.com/eea/volto-eea-design-system) - EEA Design System Plone 6 Kit Volto project for [European Environment Agency web sites](https://eea.github.io/volto-eea-design-system/)
 - [volto-centraalmuseum-theme](https://github.com/intk/volto-centraalmuseum-theme) - Volto project for the [Centraal Museum & Rietveld](https://www.centraalmuseum.nl/nl) made for [INTK](https://www.intk.com/en).
 - [volto-rietveldschroderhuis-theme](https://github.com/intk/volto-rietveldschroderhuis-theme) - Volto project for the [Rietveld Schröder House](https://www.rietveldschroderhuis.nl/en) made for [INTK](https://www.intk.com/en).
 - [volto-zeeuwsmuseum-theme](https://github.com/intk/volto-zeeuwsmuseum-theme) - Volto project for the [Zeeuws Museum](https://www.zeeuwsmuseum.nl/en) made for [INTK](https://www.intk.com/en).