fix: enable flags.enable_gpu by default

src/options.rs

@@ -806,19 +806,20 @@ fn get_use_battery(args: &BottomArgs, config: &Config) -> bool {
     false
 }
 
-#[allow(unused_variables)]
+#[cfg(feature = "gpu")]
 fn get_enable_gpu(args: &BottomArgs, config: &Config) -> bool {
-    #[cfg(feature = "gpu")]
-    {
-        if args.gpu.enable_gpu {
-            return true;
-        } else if let Some(flags) = &config.flags {
-            if let Some(enable_gpu) = flags.enable_gpu {
-                return enable_gpu;
-            }
-        }
+    if args.gpu.enable_gpu {
+        return true;
     }
+    config
+        .flags
+        .as_ref()
+        .and_then(|f| f.enable_gpu)
+        .unwrap_or(true)
+}
 
+#[cfg(not(feature = "gpu"))]
+fn get_enable_gpu(_: &BottomArgs, _: &Config) -> bool {
     false
 }
 
@@ -1149,7 +1150,14 @@ mod test {
 
         // Skip battery since it's tricky to test depending on the platform/features
         // we're testing with.
-        let skip = ["help", "version", "celsius", "battery", "generate_schema"];
+        let skip = [
+            "help",
+            "version",
+            "celsius",
+            "battery",
+            "generate_schema",
+            "enable_gpu",
+        ];
 
         for arg in app.get_arguments().collect::<Vec<_>>() {
             let arg_name = arg