style: format code with Rustfmt

This commit fixes the style issues introduced in 146a159 according to the output
from Rustfmt.

Details: https://github.com/Universal-Debloater-Alliance/universal-android-debloater-next-generation/pull/654

src/core/config.rs

@@ -105,13 +105,13 @@ impl Config {
 mod tests {
     use super::*;
     use std::path::Path;
-    
+
     // create a clean default config file for testing
     fn create_default_config_file() {
         let toml = toml::to_string(&Config::default()).unwrap();
         fs::write(&*CONFIG_FILE, toml).expect("Could not write config file to disk!");
     }
-    
+
     #[test]
     fn test_create_default_config_file() {
         create_default_config_file();
@@ -119,7 +119,7 @@ mod tests {
     }
 
     #[test]
-    fn test_load_configuration_file(){
+    fn test_load_configuration_file() {
         create_default_config_file();
         let config = Config::load_configuration_file();
         assert_eq!(config.devices.len(), 0);
@@ -151,4 +151,4 @@ mod tests {
     fn test_config_file_path() {
         assert_eq!(&*CONFIG_FILE, Path::new(&*CONFIG_DIR.join("config.toml")));
     }
-}
+}

src/gui/style.rs

@@ -592,4 +592,4 @@ mod tests {
         assert_ne!(palette.normal.error, Color::BLACK);
         assert_ne!(palette.bright.error, Color::BLACK);
     }
-}
+}