Force Ace Editor to resize after the dialog has been rendered

If the editor resizes first, the height is 0px.

Depends on: I48307bd9184b

Bug: T121164
Change-Id: Ieb4ed963b03c9e7d802e9547478eb3c9cde512ae

modules/ve-math/ve.ui.MWMathDialog.js

@@ -228,7 +228,8 @@ ve.ui.MWMathDialog.prototype.getReadyProcess = function ( data ) {
 			return this.symbolsPromise;
 		}, this )
 		.next( function () {
-			this.input.focus().moveCursorToEnd();
+			// Resize the input once the dialog has been appended
+			this.input.adjustSize( true ).focus().moveCursorToEnd();
 		}, this );
 };