feat: show warning when GRPC method is disallowed (#6246)

Description
---
Cherry picks this pr for dev:
#6244

---------

Co-authored-by: Stan Bondi <sdbondi@users.noreply.github.com>

applications/minotari_node/src/config.rs

@@ -21,6 +21,7 @@
 //  USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 use std::{
+    fmt,
     path::{Path, PathBuf},
     time::Duration,
 };
@@ -219,7 +220,7 @@ pub enum DatabaseType {
 }
 
 /// A list of all the GRPC methods that can be enabled/disabled
-#[derive(Debug, Clone, Serialize, Deserialize, Eq, PartialEq)]
+#[derive(Debug, Clone, Copy, Serialize, Deserialize, Eq, PartialEq)]
 #[serde(rename_all = "snake_case")]
 pub enum GrpcMethod {
     ListHeaders,
@@ -260,6 +261,12 @@ pub enum GrpcMethod {
     GetSideChainUtxos,
 }
 
+impl fmt::Display for GrpcMethod {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        write!(f, "{:?}", self)
+    }
+}
+
 #[cfg(test)]
 mod tests {
     use serde::{Deserialize, Serialize};