Add launcher preferences and modular landing studio [skip ci]

crates/shared/src/lib.rs

@@ -31,6 +31,7 @@ pub struct Branding {
     pub version_label: String,
     pub news: Vec<NewsItem>,
     pub links: Vec<SocialLink>,
+    pub about: AboutContent,
     pub features: Features,
     /// Raw CSS appended to the launcher stylesheet (power users).
     pub custom_css: String,
@@ -60,12 +61,28 @@ impl Default for Branding {
                 tag: Some("News".into()),
             }],
             links: vec![],
+            about: AboutContent::default(),
             features: Features::default(),
             custom_css: String::new(),
         }
     }
 }
 
+#[derive(Debug, Clone, Serialize, Deserialize, PartialEq)]
+#[serde(default)]
+pub struct AboutContent {
+    pub title: String,
+    pub icon_url: Option<String>,
+    pub body: String,
+    pub links: Vec<SocialLink>,
+}
+
+impl Default for AboutContent {
+    fn default() -> Self {
+        Self { title: String::new(), icon_url: None, body: String::new(), links: Vec::new() }
+    }
+}
+
 #[derive(Debug, Clone, Serialize, Deserialize, PartialEq)]
 #[serde(default)]
 pub struct Background {