Opening hours completed. Leptos upgraded to 0.5.2.

src/error.rs

@@ -0,0 +1,22 @@
+use std::error::Error;
+use std::fmt::{Debug, Display, Formatter};
+
+#[derive(Debug, Eq, PartialEq)]
+pub enum AppError {
+    HourParseError
+}
+
+impl AppError {
+    fn as_string(&self) -> String {
+        //match self { AppError::HourParseError => {"Hour parse error"} }
+        "Hours parse error".to_string()
+    }
+}
+
+impl Display for AppError {
+    fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
+        write!(f, "{}", self.as_string())
+    }
+}
+
+impl Error for AppError {}