Twenty-Twenty: Fixes space between post content on front.

The post author and post date did not have space between them and the post content. This brings in 1em of top margin. Of note is that this only is if the first element is a paragraph that the issue was caused.  
  
Props abcd95, sabernhardt, desrosj, sainathpoojary, viralsampat.  
Fixes #62243.


git-svn-id: https://develop.svn.wordpress.org/trunk@59470 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-content/themes/twentytwenty/assets/css/editor-style-block-rtl.css

@@ -1065,6 +1065,10 @@ hr.wp-block-separator.is-style-dots::before {
 	margin-top: 15px;
 }
 
+.wp-block-latest-posts__post-full-content > p:first-child {
+	margin-top: 1em;
+}
+
 /* Block: Shortcode -------------------------- */
 
 .editor-styles-wrapper .wp-block-shortcode textarea {

src/wp-content/themes/twentytwenty/assets/css/editor-style-block.css

@@ -1069,6 +1069,10 @@ hr.wp-block-separator.is-style-dots::before {
 	margin-top: 15px;
 }
 
+.wp-block-latest-posts__post-full-content > p:first-child {
+	margin-top: 1em;
+}
+
 /* Block: Shortcode -------------------------- */
 
 .editor-styles-wrapper .wp-block-shortcode textarea {

src/wp-content/themes/twentytwenty/style-rtl.css

@@ -3525,6 +3525,10 @@ figure.wp-block-table.is-style-stripes {
 	margin-top: 0;
 }
 
+.wp-block-latest-posts__post-full-content > p:first-child {
+	margin-top: 1em;
+}
+
 /* Block: Post Template ---------------- */
 
 .wp-block-post-template,

src/wp-content/themes/twentytwenty/style.css

@@ -3549,6 +3549,10 @@ figure.wp-block-table.is-style-stripes {
 	margin-top: 0;
 }
 
+.wp-block-latest-posts__post-full-content > p:first-child {
+	margin-top: 1em;
+}
+
 /* Block: Post Template ---------------- */
 
 .wp-block-post-template,