Add support for placing the string to translate on another line then the one with the opening/closing brackets (mage_translation_widget)

Author: stevenvdp

app/code/Magento/Translation/etc/di.xml

@@ -58,7 +58,7 @@
         <arguments>
             <argument name="patterns" xsi:type="array">
                 <item name="i18n_translation" xsi:type="string"><![CDATA[~i18n\:\s*(["'])(.*?)(?<!\\)\1~]]></item>
-                <item name="mage_translation_widget" xsi:type="string">~\$\.mage\.__\((['"])(.+?)\1\)~</item>
+                <item name="mage_translation_widget" xsi:type="string">~\$\.mage\.__\((?s)[^'"]*?(['"])(.+?)\1(?s).*?\)~</item>
                 <item name="mage_translation_static" xsi:type="string">~\$t\((["'])(.+?)\1\)~</item>
             </argument>
         </arguments>