Update VE core submodule to master (52bd0592b)

New changes:
c5df99d3a Remove remaining assert.expect's
593b09992 Localisation updates from https://translatewiki.net.
14a29056c Follow-up 593b099: Add 'lfn' language to build to unbreak the repo
faba29bde Fix cursor position when adjacent to a nail
9854cc88c Sanitize message body in standalone using DOMPurify
52bd0592b ve.dm.Change: Store DOM node arrays as single strings

Local changes:
Add sanitize module

Bug: T197723
Bug: T197894
Change-Id: I572f5bcc80175cc50ef176efb961c9b10b38c7f0

.jsduck/eg-iframe.html

@@ -465,6 +465,12 @@
 		<!-- visualEditor.diffing.standalone -->
 		<script src="lib/ve/src/ui/dialogs/ve.ui.DiffDialog.js"></script>
 
+		<!-- dompurify -->
+		<script src="lib/ve/lib/dompurify/purify.js"></script>
+
+		<!-- visualEditor.sanitize -->
+		<script src="lib/ve/src/ve.sanitize.js"></script>
+
 		<!-- visualEditor.standalone.build -->
 		<script src="lib/ve/src/init/sa/ve.init.sa.js"></script>
 		<script src="lib/ve/src/init/sa/ve.init.sa.Platform.js"></script>

extension.json

@@ -278,6 +278,19 @@
 				"mobile"
 			]
 		},
+		"ext.visualEditor.sanitize": {
+			"scripts": [
+				"lib/ve/src/ve.sanitize.js"
+			],
+			"dependencies": [
+				"ext.visualEditor.base",
+				"dompurify"
+			],
+			"targets": [
+				"desktop",
+				"mobile"
+			]
+		},
 		"ext.visualEditor.tempWikitextEditorWidget": {
 			"scripts": "modules/ve-mw/init/ve.init.mw.TempWikitextEditorWidget.js",
 			"styles": "modules/ve-mw/init/styles/ve.init.mw.TempWikitextEditorWidget.less",
@@ -1255,7 +1268,7 @@
 			],
 			"dependencies": [
 				"ext.visualEditor.core",
-				"dompurify",
+				"ext.visualEditor.sanitize",
 				"socket.io",
 				"color-picker",
 				"oojs-ui.styles.icons-user",

lib/ve

@@ -1 +1 @@
-Subproject commit a1fd90540cc79b045f4262c2420b90874609ecdd
+Subproject commit 52bd0592b764a1dcb727d099993e91d699d1c76e