feat(connection): add connection colors and database tab labels

src-tauri/src/models/connection.rs

@@ -12,6 +12,8 @@ pub struct ConnectionConfig {
     pub password: String,
     pub database: Option<String>,
     #[serde(default)]
+    pub color: Option<String>,
+    #[serde(default)]
     pub ssh_enabled: bool,
     #[serde(default)]
     pub ssh_host: String,
@@ -125,6 +127,7 @@ mod tests {
             username: username.to_string(),
             password: password.to_string(),
             database: database.map(str::to_string),
+            color: None,
             ssh_enabled: false,
             ssh_host: String::new(),
             ssh_port: 22,