implement Default traits

src/app/browser/window/tab/item/page/content/status/download/action.rs

@@ -15,6 +15,12 @@ pub struct Action {
     pub update: Rc<Update>,
 }
 
+impl Default for Action {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Action {
     // Constructors
 

src/app/browser/window/tab/item/page/content/status/download/action/cancel.rs

@@ -11,6 +11,12 @@ pub struct Cancel {
     pub action: SimpleAction,
 }
 
+impl Default for Cancel {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Cancel {
     // Constructors
 

src/app/browser/window/tab/item/page/content/status/download/action/complete.rs

@@ -11,6 +11,12 @@ pub struct Complete {
     pub action: SimpleAction,
 }
 
+impl Default for Complete {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Complete {
     // Constructors
 

src/app/browser/window/tab/item/page/content/status/download/action/update.rs

@@ -11,6 +11,12 @@ pub struct Update {
     pub action: SimpleAction,
 }
 
+impl Default for Update {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Update {
     // Constructors
 

src/app/browser/window/tab/item/page/content/status/download/cancel.rs

@@ -11,6 +11,12 @@ pub struct Cancel {
     pub button: Button,
 }
 
+impl Default for Cancel {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Cancel {
     // Constructors
 

src/app/browser/window/tab/item/page/content/status/download/open.rs

@@ -11,6 +11,12 @@ pub struct Open {
     pub button: Button,
 }
 
+impl Default for Open {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Open {
     // Constructors
 

src/app/browser/window/tab/item/page/content/status/download/progress.rs

@@ -9,6 +9,12 @@ pub struct Progress {
     pub spinner: Spinner,
 }
 
+impl Default for Progress {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Progress {
     // Constructors
 

src/app/browser/window/tab/item/page/content/status/download/status.rs

@@ -14,6 +14,12 @@ pub struct Status {
     pub label: Label,
 }
 
+impl Default for Status {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Status {
     // Constructors
 

src/app/browser/window/tab/item/page/content/text/gemini/reader/ansi/tag.rs

@@ -6,6 +6,12 @@ pub struct Tag {
     pub text_tag: TextTag,
 }
 
+impl Default for Tag {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Tag {
     // Constructors
 

src/app/browser/window/tab/item/page/content/text/gemini/reader/syntax.rs

@@ -35,6 +35,12 @@ pub struct Syntax {
     theme_set: ThemeSet,
 }
 
+impl Default for Syntax {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Syntax {
     // Constructors
 

src/app/browser/window/tab/item/page/content/text/gemini/reader/syntax/tag.rs

@@ -6,6 +6,12 @@ pub struct Tag {
     pub text_tag: TextTag,
 }
 
+impl Default for Tag {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Tag {
     // Constructors
 

src/app/browser/window/tab/item/page/content/text/gemini/reader/tag.rs

@@ -20,6 +20,12 @@ pub struct Tag {
     pub plain: TextTag,
 }
 
+impl Default for Tag {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Tag {
     // Construct
     pub fn new() -> Self {

src/app/browser/window/tab/item/page/content/text/plain/reader.rs

@@ -4,6 +4,12 @@ pub struct Reader {
     widget: Label,
 }
 
+impl Default for Reader {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Reader {
     // Construct
     pub fn new() -> Self {