Update Mastodon Frontend to 2019-03-07 bundle

See: https://git.pleroma.social/pleroma/mastofe/tags/bundle-2019-03-07

[ci skip]

priv/static/packs/core/embed.js

@@ -1,2 +1,2 @@
-(window.webpackJsonp=window.webpackJsonp||[]).push([[6],{820:function(e,t){window.addEventListener("message",function(e){var t=e.data||{};function n(){window.parent.postMessage({type:"setHeight",id:t.id,height:document.getElementsByTagName("html")[0].scrollHeight},"*")}window.parent&&"setHeight"===t.type&&(["interactive","complete"].includes(document.readyState)?n():document.addEventListener("DOMContentLoaded",n))})}},[[820,0]]]);
+(window.webpackJsonp=window.webpackJsonp||[]).push([[6],{827:function(e,t){window.addEventListener("message",function(e){var t=e.data||{};function n(){window.parent.postMessage({type:"setHeight",id:t.id,height:document.getElementsByTagName("html")[0].scrollHeight},"*")}window.parent&&"setHeight"===t.type&&(["interactive","complete"].includes(document.readyState)?n():document.addEventListener("DOMContentLoaded",n))})}},[[827,0]]]);
 //# sourceMappingURL=embed.js.map

priv/static/packs/core/mailer.js

@@ -1,2 +1,2 @@
-(window.webpackJsonp=window.webpackJsonp||[]).push([[7],{821:function(n,o,w){"use strict";w.r(o);w(822)},822:function(n,o,w){}},[[821,0]]]);
+(window.webpackJsonp=window.webpackJsonp||[]).push([[7],{828:function(n,o,w){"use strict";w.r(o);w(829)},829:function(n,o,w){}},[[828,0]]]);
 //# sourceMappingURL=mailer.js.map