refactor: 🔨 Respect declaration ordering as the Rust style guide says

src/commands/generate.rs

@@ -27,6 +27,18 @@ struct Metadata {
     authors: Option<Vec<Author>>,
 }
 
+#[derive(Deserialize)]
+struct Author {
+    name: String,
+    email: Option<String>,
+}
+
+#[derive(Parser)]
+pub struct Generate {
+    #[clap(required = true, help = "Path to the generation file")]
+    path: PathBuf,
+}
+
 impl Display for Metadata {
     fn fmt(&self, formatter: &mut Formatter) -> FormatResult {
         let mut authors_lines: String = String::default();
@@ -61,12 +73,6 @@ impl Display for Metadata {
     }
 }
 
-#[derive(Deserialize)]
-struct Author {
-    name: String,
-    email: Option<String>,
-}
-
 impl Display for Author {
     fn fmt(&self, formatter: &mut Formatter) -> FormatResult {
         let mut email_line: String = String::default();
@@ -84,12 +90,6 @@ impl Display for Author {
     }
 }
 
-#[derive(Parser)]
-pub struct Generate {
-    #[clap(required = true, help = "Path to the generation file")]
-    path: PathBuf,
-}
-
 impl Runnable for Generate {
     fn run(&self) -> ExitCode {
         let Ok(path_exists) = self.path.try_exists() else {