reset statefuls on file change

src/src/main.rs

@@ -47,10 +47,13 @@ fn App(cx: Scope) -> Element {
                   r#type: "file",
                   disabled: *processing.get(),
                   onchange: |evt| {
-                     to_owned![file];
                      if let Some(file_engine) = &evt.files {
                         for f in &file_engine.files() {
                            file.set(f.clone());
+                           analyze_status.set(String::new());
+                           clipify_status.set(String::new());
+                           processing.set(false);
+                           analysis.set(Analysis::new());
                         }
                      }
                   },