added patch for about Spitfire dialog

pre-compile-patches/branding-about.patch

@@ -0,0 +1,48 @@
+t: new
+o: /browser/base/content/aboutDialog.xhtml
+
++#filter substitution
++<?xml version="1.0"?>
++<?csp default-src chrome: resource:; object-src 'none';?>
++
++<window xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
++        xmlns:html="http://www.w3.org/1999/xhtml"
++        id="aboutDialog"
++        windowtype="Browser:About"
++        role="dialog">
++
++  <linkset>
++    <html:link rel="stylesheet" href="chrome://global/skin/global.css"/>
++    <html:link rel="stylesheet" href="chrome://browser/content/aboutDialog.css"/>
++    <html:link rel="stylesheet" href="chrome://branding/content/aboutDialog.css"/>
++    <html:link rel="localization" href="branding/brand.ftl"/>
++    <html:link rel="localization" href="browser/aboutDialog.ftl"/>
++  </linkset>
++
++  <html:div id="aboutDialogContainer">
++    <hbox id="clientBox">
++      <vbox id="leftBox" flex="1"/>
++      <vbox id="rightBox">
++        <!-- <label id="release" hidden="true">Extended Support Release</label> -->
++
++        <label class="text-blurb" style="margin-top: 16px;">Spitfire is a privacy-focused and customisable web browser.</label>
++        <label class="text-blurb">
++        </label>
++      </vbox>
++    </hbox>
++    <vbox id="bottomBox">
++      <hbox pack="center">
++        <label is="text-link" class="bottom-link" useoriginprincipal="true" href="about:license" data-l10n-id="bottomLinks-license"/>
++        <label is="text-link" class="bottom-link" href="https://weforge.xyz/Spitfire">Source Code</label>
++        <label is="text-link" class="bottom-link" href="https://liberapay.com/partisan/">Support the project</label>
++      </hbox>
++      <description id="trademark" data-l10n-id="trademarkInfo"></description>
++    </vbox>
++  </html:div>
++
++  <keyset>
++    <key id="aboutDialogEscapeKey" keycode="VK_ESCAPE"/>
++  </keyset>
++
++  <script src="chrome://browser/content/aboutDialog.js"/>
++</window>