chore: fix some typos in comments (#2340)

Signed-off-by: alongdate <alongyear@outlook.com>

examples/file_explorer.rs

@@ -92,7 +92,7 @@ impl Files {
         let paths = match std::fs::read_dir(cur_path) {
             Ok(e) => e,
             Err(err) => {
-                let err = format!("An error occured: {err:?}");
+                let err = format!("An error occurred: {err:?}");
                 self.err = Some(err);
                 self.path_stack.pop();
                 return;

examples/global.rs

@@ -48,7 +48,7 @@ fn Display() -> Element {
 
 #[component]
 fn Reset() -> Element {
-    // Not all write methods are availale on global signals since `write` requires a mutable reference. In these cases,
+    // Not all write methods are available on global signals since `write` requires a mutable reference. In these cases,
     // We can simply pull out the actual signal using the signal() method.
     let mut as_signal = use_hook(|| COUNT.signal());
 

examples/nested_listeners.rs

@@ -2,7 +2,7 @@
 //!
 //! This example showcases how to control event bubbling from child to parents.
 //!
-//! Both web and desktop support bubbling and bubble cancelation.
+//! Both web and desktop support bubbling and bubble cancellation.
 
 use dioxus::prelude::*;
 

examples/read_size.rs

@@ -1,6 +1,6 @@
 //! Read the size of elements using the MountedData struct.
 //!
-//! Whenever an Element is finally mounted to the Dom, its data is avaiable to be read.
+//! Whenever an Element is finally mounted to the Dom, its data is available to be read.
 //! These fields can typically only be read asynchronously, since various renderers need to release the main thread to
 //! perform layout and painting.