🐛(frontend) fix callout block spacing for old browsers

On the old Firefox versions, the spacing of the
callout block was not applied correctly.
We changed the "white-space" property to "pre-wrap"
to ensure that the spacing is applied correctly on
all browsers.

src/frontend/apps/impress/src/features/docs/doc-editor/components/custom-blocks/CalloutBlock.tsx

@@ -21,6 +21,9 @@ const CalloutBlockStyle = createGlobalStyle`
     padding: var(--c--globals--spacings--3xs) var(--c--globals--spacings--3xs);
     border-radius: var(--c--globals--spacings--3xs);
   }
+  .bn-block-content[data-content-type="callout"] .inline-content {
+    white-space: pre-wrap;
+  }
 `;
 
 type CreateCalloutBlockConfig = BlockConfig<