style(tauri): format the code with rustfmt

Part-of: <https://dev.funkwhale.audio/funkwhale/funkwhale/-/merge_requests/2701>

front/tauri/build.rs

@@ -1,3 +1,3 @@
 fn main() {
-  tauri_build::build()
+    tauri_build::build()
 }

front/tauri/src/lib.rs

@@ -1,6 +1,6 @@
 #[cfg_attr(mobile, tauri::mobile_entry_point)]
 pub fn run() {
-  tauri::Builder::default()
-    .run(tauri::generate_context!())
-    .expect("error while running tauri application");
+    tauri::Builder::default()
+        .run(tauri::generate_context!())
+        .expect("error while running tauri application");
 }

front/tauri/src/main.rs

@@ -4,9 +4,9 @@
 use color_eyre::Result;
 
 fn main() -> Result<()> {
-  color_eyre::install()?;
+    color_eyre::install()?;
 
-  funkwhale_lib::run();
+    funkwhale_lib::run();
 
-  Ok(())
+    Ok(())
 }