refactor(toast): ♻️ fix few typos and grammatical mistakes

Author: mcnaveen

src/toast/stories/ToastBasic.component.tsx

@@ -214,7 +214,7 @@ function ToastTriggers() {
             })
           }
         >
-          Add Non Dismissable Toast
+          Add Manually Dismissable Toast
         </TriggerButton>
       </div>
     </div>

src/toast/stories/ToastCSSAnimated.component.tsx

@@ -93,7 +93,7 @@ export function ToastTriggers() {
           })
         }
       >
-        Add 4s duration Top Left Toast
+        Add 4s duration Bottom Left Toast
       </TriggerButton>
       <TriggerButton
         onClick={() =>
@@ -114,7 +114,7 @@ export function ToastTriggers() {
           })
         }
       >
-        Add Non Dismissable Bottom Right Toast
+        Add Manually Dismissable Bottom Right Toast
       </TriggerButton>
     </div>
   );