Documentation updates related to Changelog 10.2

[sypets]

Workflow for updating docs based on Changelog is documented on https://docs.typo3.org/m/typo3/docs-how-to-document/master/en-us/GeneralConventions/HowToUpdateDocs.html

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Issue created by t3doc-tools:

php generate-changelog-issue.php "https://docs.typo3.org/c/typo3/cms-core/master/en-us/Changelog/master/Index.html"

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Breaking

Features

• [x] Feature: 79445 - Add Multistep Wizard
• [x] Feature: 79445 - Improve form creation wizard --> form project will take care
• [x] Feature: 82706 - Render fieldset labels in form templates --> form project will take care
• [x] Feature: 84203 - Unify form setup YAML loading --> form project will take care
• [x] Feature: 84713 - Access single values in form templates --> form project will take care
• [x] Feature: 84990 - Add event for checking external links in RTE
• [x] Feature: 84990 - Mark broken file links in RTE
• [x] Feature: 85592 - Add site title configuration to sites module
• [x] Feature: 86759 - Support nomodule attribute for JavaScript includes ... see issue in TypoScript ref
• [x] Feature: 86918 - Add additional configuration for external link types in Linkvalidator
• [x] Feature: 86967 - Allow fetching uid of a LazyLoadingProxy without loading the object first
• [x] Feature: 87380 - Introduce SiteLanguageAwareInterface to denote site language awareness
• [x] Feature: 87798 - Provide a way to sort form lists in ext:form
• [x] Feature: 88102 - Frontend Login Form Via Fluid And Extbase
• [x] Feature: 88110 - Felogin extbase password recovery
• [x] Feature: 88238 - FeatureToggle: form.legacyUploadMimeTypes
• [x] Feature: 88902 - Feature Switch: Redirect and Base Redirect Middlewares can be reordered
• [x] Feature: 88950 - Add “storeSession” argument to Widget ViewHelpers
• [x] Feature: 89171 - Added possibility to have multiple sitemaps
• [x] Feature: 89398 - Support for environment variables in imports in site configurations
• [x] Feature: 89458 - Show link to online docs in extension manager
• [x] Feature: 89526 - FeatureFlag: betaTranslationServer
• [x] Feature: 89577 - New PSR-14 based events for File Abstraction Layer
• [x] Feature: 89603 - Introduce native pagination for lists
• [x] Feature: 89718 - Unified PHP API for loading PageTSconfig
• [x] Feature: 89733 - New PSR-14 events for existing Signal Slots in Core Extension
• [x] Feature: 89746 - Custom icon for record browser button in forms --> form project will take care
• [x] Feature: 89747 - Custom tables with record browser in forms --> form project will take care

Deprecation

• [x] Deprecation: 85592 - Deprecated site title configuration
• [x] Deprecation: 88238 - Allowed MIME types of FileUpload and ImageUpload --> form project will take care
• [x] Deprecation: 89331 - FormEngine legacy functions
• [x] Deprecation: 89468 - Deprecate injection of EnvironmentService in Web Request
• [x] Deprecation: 89554 - Deprecate TYPO3CMSExtbaseMvcControllerAbstractController
• [x] Deprecation: 89577 - FAL SignalSlot handling migrated to PSR-14 events
• [x] Deprecation: 89579 - ServiceChains require an array for excluded Service keys
• [x] Deprecation: 89631 - Use Environment API to fetch application context
• [x] Deprecation: 89718 - Legacy PageTSconfig parsing lowlevel API
• [x] Deprecation: 89722 - GMENU_LAYERS related property TSFE->divSection
• [x] Deprecation: 89733 - Signal Slots in Core Extension migrated to PSR-14 events
• [x] Deprecation: 89742 - Form mixins --> form project will take care
• [x] Deprecation: 89756 - BackendUtility::TYPO3_copyRightNotice

Important

• [x] Important: 84221 - Restructuring of form setup --> form project will take care
• [x] Important: 87518 - Use prepared statements for pdo_mysql per default
• [x] Important: 88655 - Changed loading order of RTE Configuration
• [x] Important: 89645 - Removed systemLog options
• [x] Important: 89764 - Incompatible environment related dependency injection services have been removed

[sypets]

Moved this and the other changelog issues from team repo to here, because this is where the 10.4 issue was started and this is where the main action is.