Merge branch 'latest_324_Dokumentation_Anbindungsleitfaden' into 'main'

docs/changelog.md

docs/leitfaeden/integration-guide-sender.mdx

docs/leitfaeden/integration-guide-subscriber.mdx

docs/leitfaeden/integration_guide_main.mdx

docs/leitfaeden/integration_guide_sender.mdx

docs/leitfaeden/integration_guide_subscriber.mdx

...organisation-tasks/leitfaden-fachverfahren-ueberblick.mdx

.../organisation-tasks/leitfaden-onlinedienst-ueberblick.mdx

docs/organisation-tasks/subscriber.mdx

sidebar.js

static/images/leitfaeden/Anbindung-receiver-part-1.svg

static/images/leitfaeden/Anbindung-receiver-part-2.svg

static/images/leitfaeden/Anbindung-sender-part-1.svg

static/images/leitfaeden/Anbindung-sender-part-2.svg

static/images/leitfaeden/konzeption_prozessschaubild.svg