Add header links to blog meta

lib/DB/BlogMeta.rakumod

@@ -1,6 +1,7 @@
 use v6.e.PREVIEW;
 
 use JSON::Class:auth<zef:vrurg>;
+use DB::HeaderLink;
 
 # Top level metadata for the blog
 unit class BlogMeta is json(:pretty);
@@ -17,6 +18,9 @@ has Int:D $.placeholder-id is rw = 0;
 #| The id of the about post
 has Int:D $.about-id is rw = 0;
 
+#| Optional list of extra header links
+has HeaderLink:D @.header-links is rw = [];
+
 #| The base url of this post
 has Str:D $.base-url is required;
 

lib/DB/HeaderLink.rakumod

@@ -0,0 +1,10 @@
+use v6.e.PREVIEW;
+
+use JSON::Class:auth<zef:vrurg>;
+
+# Additional header links
+unit class HeaderLink is json(:pretty);
+
+has Str:D $.link is required is rw;
+
+has Str $.icon is rw;