Build source maps on production build again

Signed-off-by: Julius Härtl <jus@bitgrid.net>
Signed-off-by: npmbuildbot[bot] <npmbuildbot[bot]@users.noreply.github.com>

apps/files_sharing/js/dist/collaboration.js

@@ -1 +1,2 @@
 !function(e){var n={};function t(r){if(n[r])return n[r].exports;var o=n[r]={i:r,l:!1,exports:{}};return e[r].call(o.exports,o,o.exports,t),o.l=!0,o.exports}t.m=e,t.c=n,t.d=function(e,n,r){t.o(e,n)||Object.defineProperty(e,n,{enumerable:!0,get:r})},t.r=function(e){"undefined"!=typeof Symbol&&Symbol.toStringTag&&Object.defineProperty(e,Symbol.toStringTag,{value:"Module"}),Object.defineProperty(e,"__esModule",{value:!0})},t.t=function(e,n){if(1&n&&(e=t(e)),8&n)return e;if(4&n&&"object"==typeof e&&e&&e.__esModule)return e;var r=Object.create(null);if(t.r(r),Object.defineProperty(r,"default",{enumerable:!0,value:e}),2&n&&"string"!=typeof e)for(var o in e)t.d(r,o,function(n){return e[n]}.bind(null,o));return r},t.n=function(e){var n=e&&e.__esModule?function(){return e.default}:function(){return e};return t.d(n,"a",n),n},t.o=function(e,n){return Object.prototype.hasOwnProperty.call(e,n)},t.p="/js/",t(t.s=200)}({200:function(e,n,r){r.p=OC.linkTo("files_sharing","js/dist/"),r.nc=btoa(OC.requestToken),window.OCP.Collaboration.registerType("file",{action:function(){return new Promise((function(e,n){OC.dialogs.filepicker(t("files_sharing","Link to a file"),(function(t){OC.Files.getClient().getFileInfo(t).then((function(n,t){e(t.id)})).fail((function(){n(new Error("Cannot get fileinfo"))}))}),!1,null,!1,OC.dialogs.FILEPICKER_TYPE_CHOOSE,"",{allowDirectoryChooser:!0})}))},typeString:t("files_sharing","Link to a file"),typeIconClass:"icon-files-dark"})}});
+//# sourceMappingURL=collaboration.js.map

apps/files_sharing/js/dist/main.js

@@ -1 +1,2 @@
 !function(e){var t={};function r(n){if(t[n])return t[n].exports;var o=t[n]={i:n,l:!1,exports:{}};return e[n].call(o.exports,o,o.exports,r),o.l=!0,o.exports}r.m=e,r.c=t,r.d=function(e,t,n){r.o(e,t)||Object.defineProperty(e,t,{enumerable:!0,get:n})},r.r=function(e){"undefined"!=typeof Symbol&&Symbol.toStringTag&&Object.defineProperty(e,Symbol.toStringTag,{value:"Module"}),Object.defineProperty(e,"__esModule",{value:!0})},r.t=function(e,t){if(1&t&&(e=r(e)),8&t)return e;if(4&t&&"object"==typeof e&&e&&e.__esModule)return e;var n=Object.create(null);if(r.r(n),Object.defineProperty(n,"default",{enumerable:!0,value:e}),2&t&&"string"!=typeof e)for(var o in e)r.d(n,o,function(t){return e[t]}.bind(null,o));return n},r.n=function(e){var t=e&&e.__esModule?function(){return e.default}:function(){return e};return r.d(t,"a",t),t},r.o=function(e,t){return Object.prototype.hasOwnProperty.call(e,t)},r.p="/js/",r(r.s=381)}({381:function(e,t){Object.assign(OC,{Share:{SHARE_TYPE_USER:0,SHARE_TYPE_GROUP:1,SHARE_TYPE_LINK:3,SHARE_TYPE_EMAIL:4,SHARE_TYPE_REMOTE:6,SHARE_TYPE_CIRCLE:7,SHARE_TYPE_GUEST:8,SHARE_TYPE_REMOTE_GROUP:9,SHARE_TYPE_ROOM:10}})}});
+//# sourceMappingURL=main.js.map

webpack.prod.js

@@ -16,6 +16,7 @@ module.exports = common.map(
 							keep_quoted_props: true,
 						},
 					},
+					sourceMap: true,
 				}),
 			],
 		},