💄 Restyle downloads sidebar

This includes some slight refactoring to make things work better

Author: trickypr

src/browser/themes/pulse/content/downloads.css

@@ -0,0 +1,33 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/* ========================================================================== */
+/* about:downloads */
+
+#contentAreaDownloadsView {
+  background: var(--tab-selected-bgcolor, var(--toolbar-bgcolor));
+}
+
+#downloadsListBox {
+  border: none;
+  border-radius: 0;
+  background: none;
+}
+
+#downloadsListBox > richlistitem {
+  border-radius: 4px;
+  transition: background-color 0.2s ease-in-out;
+
+  margin-bottom: 8px;
+}
+
+#downloadsListBox > richlistitem:not([selected]):hover {
+  background-color: var(--in-content-box-background);
+}
+
+@media (prefers-reduced-motion) {
+  #downloadsListBox > richlistitem {
+    transition: none;
+  }
+}

src/browser/themes/pulse/jar.inc.mn

@@ -7,5 +7,6 @@
 # be specified once. As a result, the source file paths are relative
 # to the location of the actual manifest.
 
-* skin/classic/browser/sidebar_tabs.css                                (../pulse/sidebar_tabs.css)
+* skin/classic/browser/pulse/sidebar_tabs.css                          (../pulse/sidebar_tabs.css)
+  skin/classic/browser/pulse/downloads.css                             (../pulse/content/downloads.css)
   skin/classic/browser/addons/shared.css                               (../pulse/addons/shared.css)

src/browser/themes/pulse/sidebar_tabs.css

@@ -3,7 +3,7 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 /* ========================================================================== */
-/* SIDE BAR STYLES */
+/* SIDEBAR TABS STYLES */
 
 :root {
   --sidebar-inside-padding: 8px;

src/browser/themes/shared/downloads/allDownloadsView-inc-css.patch

@@ -0,0 +1,12 @@
+diff --git a/browser/themes/shared/downloads/allDownloadsView.inc.css b/browser/themes/shared/downloads/allDownloadsView.inc.css
+index 204e6a95a17a58789c5992983196542104f6cf84..43f7cae36b9b60d27d2442efe3f48f7cbea8bcaa 100644
+--- a/browser/themes/shared/downloads/allDownloadsView.inc.css
++++ b/browser/themes/shared/downloads/allDownloadsView.inc.css
+@@ -4,6 +4,7 @@
+ 
+ @import "chrome://browser/skin/downloads/progressmeter.css";
+ @import "chrome://browser/skin/downloads/download-blockedStates.css";
++@import "chrome://browser/skin/pulse/downloads.css";
+ 
+ /*** View and outer controls ***/
+