fix(onboarding): address PR review feedback on docker label discovery

Fix app-only continue flow, handle stale label sync, per-layout yOffset,
blank label normalization, updatedAt on source upsert, docs link, and
forceDisableStatus for ping-enabled apps.

apps/docs/docs/integrations/docker-labels/index.mdx

@@ -31,7 +31,7 @@ Homarr can read `homarr.*` labels on your containers to pre-populate apps during
 
 ## Homepage fallback
 
-When `homarr.name` is absent, Homarr reads `homepage.name`, `homepage.group`, and `homepage.href` if homepage label reading is enabled (default: on).
+When `homarr.name` is absent, Homarr reads `homepage.name`, `homepage.group`, `homepage.href`, `homepage.icon`, and `homepage.description` if homepage label reading is enabled (default: on).
 
 ## Example
 

apps/docs/docs/integrations/docker/index.mdx

@@ -93,7 +93,7 @@ They are then available in the app list and can be used as normally added apps.
 
 ### Configuration
 
-Homarr supports Docker labels for automatic app discovery during onboarding. See [Docker labels](./docker-labels/index.mdx) for the full reference.
+Homarr supports Docker labels for automatic app discovery during onboarding. See [Docker labels](../docker-labels/index.mdx) for the full reference.
 
 Currently Homarr supports one label for hiding containers: