Updating Twenty Nineteen, the new default theme for 2019.

This update changes the following:

- Reverts the customization to the toolbar for wide and full blocks to make them more usable. More info here: https://github.com/WordPress/twentynineteen/pull/668
- Add `nowrap` to the columns block at breakpoints above `600px`. More info here: https://github.com/WordPress/twentynineteen/pull/674 

Props joen, kjellr, allancole.

Fixes #45369.

Merges [44189] into trunk.

See #45424.
Built from https://develop.svn.wordpress.org/trunk@44300


git-svn-id: http://core.svn.wordpress.org/trunk@44130 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-content/themes/twentynineteen/sass/blocks/_blocks.scss

@@ -700,6 +700,10 @@
 			padding-right: $size__spacing-unit;
 		}
 
+		@include media(mobile) {
+			flex-wrap: nowrap;
+		}
+
 		@include media(tablet) {
 			.wp-block-column > * {
 

wp-content/themes/twentynineteen/style-editor.css

@@ -58,12 +58,6 @@ body .wp-block[data-align="full"] {
   }
 }
 
-/** === Editor Block Toolbar Position === */
-.editor-block-list__block[data-align="wide"] .editor-block-contextual-toolbar .editor-block-toolbar.editor-block-toolbar,
-.editor-block-list__block[data-align="full"] .editor-block-contextual-toolbar .editor-block-toolbar.editor-block-toolbar {
-  max-width: none;
-}
-
 /** === Content Width === */
 .wp-block {
   width: calc(100vw - (2 * 1rem));

wp-content/themes/twentynineteen/style-editor.scss

@@ -54,14 +54,6 @@ body {
 	}
 }
 
-/** === Editor Block Toolbar Position === */
-
-// Since 2019 left-aligns wide and fullwide blocks, left align the toolbar too.
-.editor-block-list__block[data-align="wide"] .editor-block-contextual-toolbar .editor-block-toolbar.editor-block-toolbar,
-.editor-block-list__block[data-align="full"] .editor-block-contextual-toolbar .editor-block-toolbar.editor-block-toolbar {
-		max-width: none;
-}
-
 /** === Content Width === */
 
 .wp-block {

wp-content/themes/twentynineteen/style-rtl.css

@@ -4188,6 +4188,12 @@ body.page .main-navigation {
   padding-left: 1rem;
 }
 
+@media only screen and (min-width: 600px) {
+  .entry .entry-content .wp-block-columns {
+    flex-wrap: nowrap;
+  }
+}
+
 @media only screen and (min-width: 768px) {
   .entry .entry-content .wp-block-columns .wp-block-column > *:first-child {
     margin-top: 0;

wp-content/themes/twentynineteen/style.css

@@ -4200,6 +4200,12 @@ body.page .main-navigation {
   padding-right: 1rem;
 }
 
+@media only screen and (min-width: 600px) {
+  .entry .entry-content .wp-block-columns {
+    flex-wrap: nowrap;
+  }
+}
+
 @media only screen and (min-width: 768px) {
   .entry .entry-content .wp-block-columns .wp-block-column > *:first-child {
     margin-top: 0;

wp-includes/version.php

@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.1-alpha-44299';
+$wp_version = '5.1-alpha-44300';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.