Forwarded error from ProfileProxy::profile_names instead of 'expecting' there. Handled error up in main by logging. Reorganized code in ctrl_fan_cpu to keep consistent code structure

rog-dbus/src/zbus_profile.rs

@@ -41,6 +41,9 @@ trait Daemon {
     /// Profiles method
     fn profiles(&self) -> zbus::Result<String>;
 
+    /// ProfileNames method
+    fn profile_names(&self) -> zbus::Result<String>;
+
     /// SetProfile method
     fn set_profile(&self, profile: &str) -> zbus::Result<()>;
 
@@ -82,6 +85,11 @@ impl<'a> ProfileProxy<'a> {
         self.0.set_profile(&serde_json::to_string(cmd).unwrap())
     }
 
+    #[inline]
+    pub fn profile_names(&self) -> Result<String> {
+        self.0.profile_names()
+    }
+
     #[inline]
     pub fn connect_notify_profile(
         &self,