Fix small tweaks

src/client.rs

@@ -179,9 +179,9 @@ pub fn client(args: &Args) -> Result<(), String> {
 
     match args {
         Args::Profile { profile: name } => {
-            if client.get_desktop().unwrap_or(true) {
+            if client.get_desktop()? {
                 return Err(String::from(r#"
-Power Profiles are not supported on Desktop computers.
+Power profiles are not supported on Desktop computers.
 "#));
             }
 
@@ -193,7 +193,7 @@ Power Profiles are not supported on Desktop computers.
             }
         }
         Args::Graphics { cmd } => {
-            if !client.get_switchable().unwrap_or(false) {
+            if !client.get_switchable()? {
                 return Err(String::from(r#"
 Graphics switching is not supported on this device, because
 this device is either a desktop or doesn't have both an iGPU and dGPU.
@@ -205,14 +205,9 @@ this device is either a desktop or doesn't have both an iGPU and dGPU.
                 Some(GraphicsArgs::Hybrid) => client.set_graphics("hybrid"),
                 Some(GraphicsArgs::Integrated) => client.set_graphics("integrated"),
                 Some(GraphicsArgs::Nvidia) => client.set_graphics("nvidia"),
-                Some(GraphicsArgs::Switchable) => {
-                    if client.get_switchable()? {
-                        println!("switchable");
-                    } else {
-                        println!("not switchable");
-                    }
-                    Ok(())
-                }
+                Some(GraphicsArgs::Switchable) => client
+                    .get_switchable()
+                    .map(|b| println!("{}", if b { "switchable" } else { "not switchable" })),
                 Some(GraphicsArgs::Power { state }) => match state.as_deref() {
                     Some("auto") => client.auto_graphics_power(),
                     Some("off") => client.set_graphics_power(false),