Add dev_commit.sh helper and no-emoji mandate

wp-includes/blocks/nextpage/block.json

@@ -0,0 +1,20 @@
+{
+	"$schema": "https://schemas.wp.org/trunk/block.json",
+	"apiVersion": 3,
+	"name": "core/nextpage",
+	"title": "Page Break",
+	"category": "design",
+	"description": "Separate your content into a multi-page experience.",
+	"keywords": [ "next page", "pagination" ],
+	"parent": [ "core/post-content" ],
+	"textdomain": "default",
+	"supports": {
+		"customClassName": false,
+		"className": false,
+		"html": false,
+		"interactivity": {
+			"clientNavigation": true
+		}
+	},
+	"editorStyle": "wp-block-nextpage-editor"
+}