Move default config into separate file

website/site/content/docs/webapp/itemcard-customize.md

@@ -19,7 +19,7 @@ _UI Settings_. Among other things, there is a _Item Cards_ section:
 This defines how many of the item notes to display in the card. You
 can set it to `0` to not show any notes at all. This is only a "soft
 limit", there is also a "hard limit" in [docspell's
-configuration](@/docs/configure/main.md#rest-server) (see
+configuration](@/docs/configure/defaults.md#rest-server) (see
 `max-note-length`), that is an upper limit to this value.
 
 ### Size of item preview
@@ -27,7 +27,7 @@ configuration](@/docs/configure/main.md#rest-server) (see
 The item preview is an image of the first page of the first
 attachment. You can change the order of attachments in the item detail
 view. This image has a predefined size, which is specified [docspell's
-configuration](@/docs/configure/main.md#joex) (see
+configuration](@/docs/configure/defaults.md#joex) (see
 `extraction.preview.dpi`). The size for displaying it, can be
 specified via this setting. A _small_ preview uses about 80px width, a
 _medium_ one 160px and _large_ means to use the available space in the

website/site/content/docs/webapp/scanmailbox.md

@@ -191,7 +191,7 @@ file to look for duplicates, too.
 
 Docspell will go through all folders and download mails in “batches”.
 This size can be set by the admin in the [configuration
-file](@/docs/configure/main.md#joex) and applies to all these
+file](@/docs/configure/defaults.md#joex) and applies to all these
 tasks (same for all users). This batch only contains the mail headers
 and not the complete mail.