Adding title to config and utilizing it in layout

src/config.rs

@@ -6,6 +6,7 @@ pub struct Config {
     pub database_max_connections: u32,
     pub host: String,
     pub port: u16,
+    pub title: String,
 }
 
 impl Config {
@@ -14,12 +15,14 @@ impl Config {
         let database_max_connections = std::env::var("DATABASE_MAX_CONNECTIONS").context("DATABASE_MAX_CONNECTIONS not set")?.parse()?;
         let host = std::env::var("HOST").context("HOST not set")?;
         let port = std::env::var("PORT").context("PORT not set")?.parse()?;
+        let title = std::env::var("TITLE").context("TITLE not set")?;
 
         Ok(Config {
             database_url,
             database_max_connections,
             host,
             port,
+            title,
         })
     }
 }