💄(frontend) adapt some style

- editor block padding only when background
- increase icon shadow grid

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);
     }

src/frontend/apps/impress/src/features/docs/docs-grid/components/DocsGridItem.tsx

@@ -40,7 +40,7 @@ export const DocsGridItem = ({ doc }: DocsGridItemProps) => {
         $align="center"
         role="row"
         $gap="20px"
-        $padding={{ vertical: '2xs', horizontal: isDesktop ? 'base' : 'xs' }}
+        $padding={{ vertical: '4xs', horizontal: isDesktop ? 'base' : 'xs' }}
         $css={css`
           cursor: pointer;
           border-radius: 4px;

src/frontend/apps/impress/src/features/docs/docs-grid/components/SimpleDocItem.tsx

@@ -50,6 +50,7 @@ export const SimpleDocItem = ({
           background-color: transparent;
           filter: drop-shadow(0px 2px 2px rgba(0, 0, 0, 0.05));
         `}
+        $padding={`${spacingsTokens['3xs']} 0`}
       >
         {isPinned ? (
           <PinnedDocumentIcon