💄(frontend) adapt padding on editor paragraph

A padding was added to the paragraph in the editor
to look nicer with a background color,
but this caused the text to be misaligned with
some elements when there is no background.
We add the padding only when there
is a background color.

Author: AntoLC

src/frontend/apps/impress/src/features/docs/doc-editor/styles.tsx

@@ -72,8 +72,7 @@ export const cssEditor = (readonly: boolean) => css`
       border-radius: var(--c--theme--spacings--3xs);
     }
 
-    .bn-block-content[data-content-type='paragraph'],
-    .bn-block-content[data-content-type='heading'] {
+    .bn-block[data-background-color] > .bn-block-content {
       padding: var(--c--theme--spacings--3xs) var(--c--theme--spacings--3xs);
       border-radius: var(--c--theme--spacings--3xs);
     }