fix most typos, add crate-ci/typos to CI (#2653)

* fix most typos, add crate-ci/typos to CI

---------

Co-authored-by: Jonathan Kelley <jkelleyrtp@gmail.com>

packages/core/src/arena.rs

@@ -92,25 +92,25 @@ impl VirtualDom {
 }
 
 impl ElementPath {
-    pub(crate) fn is_decendant(&self, small: &[u8]) -> bool {
+    pub(crate) fn is_descendant(&self, small: &[u8]) -> bool {
         small.len() <= self.path.len() && small == &self.path[..small.len()]
     }
 }
 
 #[test]
-fn is_decendant() {
+fn is_descendant() {
     let event_path = ElementPath {
         path: &[1, 2, 3, 4, 5],
     };
 
-    assert!(event_path.is_decendant(&[1, 2, 3, 4, 5]));
-    assert!(event_path.is_decendant(&[1, 2, 3, 4]));
-    assert!(event_path.is_decendant(&[1, 2, 3]));
-    assert!(event_path.is_decendant(&[1, 2]));
-    assert!(event_path.is_decendant(&[1]));
+    assert!(event_path.is_descendant(&[1, 2, 3, 4, 5]));
+    assert!(event_path.is_descendant(&[1, 2, 3, 4]));
+    assert!(event_path.is_descendant(&[1, 2, 3]));
+    assert!(event_path.is_descendant(&[1, 2]));
+    assert!(event_path.is_descendant(&[1]));
 
-    assert!(!event_path.is_decendant(&[1, 2, 3, 4, 5, 6]));
-    assert!(!event_path.is_decendant(&[2, 3, 4]));
+    assert!(!event_path.is_descendant(&[1, 2, 3, 4, 5, 6]));
+    assert!(!event_path.is_descendant(&[2, 3, 4]));
 }
 
 impl PartialEq<&[u8]> for ElementPath {