fix(content-block-segmented): spacing adjustments (#12129)

### Related Ticket(s)

[ADCMS-6929](https://jsw.ibm.com/browse/ADCMS-6929)

### Description

Fixes spacing for the `<c4d-content-block-segmented-item>` component.

[Figma specs](https://www.figma.com/design/9mRDDnXj2FWnP1SBy88EYh/Content-block-v2?node-id=1-3099&node-type=canvas&t=jd4KO55hcGcO1hW9-0)

### Changelog

**Changed**

- Adjust spacing for slotted footer content to the `<c4d-content-block-segmented-item>` component

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packages/web-components/src/components/content-block-segmented/content-block-segmented.scss

@@ -1,5 +1,5 @@
 //
-// Copyright IBM Corp. 2020, 2023
+// Copyright IBM Corp. 2020, 2024
 //
 // This source code is licensed under the Apache-2.0 license found in the
 // LICENSE file in the root directory of this source tree.
@@ -45,7 +45,7 @@
   }
 
   ::slotted([slot='footer']) {
-    margin-block-start: $spacing-07;
+    margin-inline: 0;
   }
 }