Issue #3060616 by elber, nod_, quietone, paulocs, Neslee Canil Pinto, KapilV, kostyashupenko, ranjith_kumar_k_u, adityasingh, ifrik, mmatsoo, adamzimmermann, ravi.shankar, sonam.chaturvedi, BhumikaVarshney, catch, longwave, xjm, dawehner, alexpott, ayushmishra206, hmendes, Pancho: Update the module descriptions on the Extend page to fit the Help texts

Issue #3072702 by alexpott, Wim Leers, mikelutz, xjm, catch, Berdir, tedbow, webchick, shaal, Mixologic, heddn: Core extensions should not need to specify the new core_version_requirement in *.info.yml files so that 9.0.x can be installed

Issue #2199637 by Berdir, sun, swentel: Replace "required" flag of Field module with proper dependencies.