fix: remove invalid hash anchors in changelog and checkout slots

These anchors referenced sections that no longer exist. Pointing to the containers overview page instead.

Author: bdenham

src/content/docs/dropins/checkout/slots.mdx

@@ -14,7 +14,7 @@ Learn about the slots provided in the checkout drop-in component.
 
 ## Title slots
 
-The `TitleProps` interface defines slots for the [`Title`](/dropins/checkout/containers/#title-and-heading-customization) component. These slots enable you to customize the title content displayed in specific containers.
+The `TitleProps` interface defines slots for the [`Title`](/dropins/checkout/containers/) component. These slots enable you to customize the title content displayed in specific containers.
 
 ```ts
 export interface TitleProps {

src/content/docs/releases/changelog.mdx

@@ -215,11 +215,11 @@ import Aside from '@components/Aside.astro';
 
       The **[`Event Handling`](/dropins/all/events/) has been documented** within the list of events emitted and subscribed by the checkout drop-in component containers.
 
-      A new **[`Active`](/dropins/checkout/containers/#active-property) property has been added** for all containers: This property activates/deactivates the container.
+      A new **[`Active`](/dropins/checkout/containers/) property has been added** for all containers: This property activates/deactivates the container.
 
-      A new **[`AutoSync`](/dropins/checkout/containers/#autosync-property) property has been added** for some containers: This property allows the container automatically synchronizing its state changes with the backend.
+      A new **[`AutoSync`](/dropins/checkout/containers/) property has been added** for some containers: This property allows the container automatically synchronizing its state changes with the backend.
 
-      A new **[`TitleProps`](/dropins/checkout/containers/#title-and-heading-customization) interface has been created** to customize the title and header of some containers.
+      A new **[`TitleProps`](/dropins/checkout/containers/) interface has been created** to customize the title and header of some containers.
 
       The **[`BillToShippingAddress`](/dropins/checkout/containers/bill-to-shipping-address/) container configuration structure has been modified.** A new property has been added to the `BillToShippingAddressProps` interface: