chore: fix typos and lint issues

Author: ghiscoding

src/models/gridOption.interface.ts

@@ -269,8 +269,8 @@ export interface GridOption<C extends BaseColumn = BaseColumn> {
   /** Defaults to true, which leads to render a separate span for the number and styles it with css class <i>slick-sort-indicator-numbered</i> */
   sortColNumberInSeparateSpan?: boolean;
 
-  /** Defaults to undefined. If we are inside a shadow DOM tree, this must be the shadow root of the tree */
-  shadowRoot?: ShadowRoot
+  /** Defaults to undefined. If we are inside a Shadow DOM tree, this must be the Shadow root of the tree */
+  shadowRoot?: ShadowRoot;
 
   /**
    * Defaults to false, which leads to suppress the cell from becoming active when cell as an editor and is clicked.

src/plugins/slick.headermenu.ts

@@ -220,7 +220,7 @@ export class SlickHeaderMenu implements SlickPlugin {
     const menu = column?.header?.menu as HeaderMenuItems;
 
     if (menu?.items) {
-      console.warn('[SlickGrid] Header Menu "items" prperty was deprecated in favor of "commandItems" to align with all other Menu plugins.');
+      console.warn('[SlickGrid] Header Menu "items" property was deprecated in favor of "commandItems" to align with all other Menu plugins.');
     }
 
     if (menu) {