no-bug: Fix some conflicts

src/zen/common/zen-sets.js

@@ -144,6 +144,8 @@ document.addEventListener(
               { global: "current" }
             );
             ZenLibrary.toggle();
+            break;
+          }
           case "cmd_zenOpenSpaceRoutingSettings": {
             gZenSpaceRoutingManager.openSpaceRoutingDialog(window);
             break;

src/zen/library/ZenLibrarySections.mjs

@@ -1282,7 +1282,6 @@ class ZenLibraryDownloadsSection extends ProgressiveSearchSection {
         <img
           class="library-download-progress-cancel"
           src="chrome://browser/skin/zen-icons/close.svg"
-          alt=""
         />
       </button>
     `;
@@ -1395,7 +1394,9 @@ class ZenLibraryDownloadsSection extends ProgressiveSearchSection {
       });
     }
 
-    items.push({ separator: true });
+    if (fileExists || !isActive) {
+      items.push({ separator: true });
+    }
 
     if (fileExists) {
       items.push({

src/zen/library/zen-library.css

@@ -382,8 +382,8 @@ zen-library[open] {
   flex-shrink: 0;
   width: 18px;
   height: 18px;
-  margin-inline-start: calc(var(--toolbarbutton-inner-padding) / 2);
-  margin-inline-end: calc(var(--toolbarbutton-inner-padding) * 1.5);
+  margin-inline-start: calc(var(--toolbarbutton-padding-inner) / 2);
+  margin-inline-end: calc(var(--toolbarbutton-padding-inner) * 1.5);
   padding: 0;
   border-radius: 4px;
   fill: currentColor;
@@ -398,8 +398,8 @@ zen-library[open] {
   justify-content: center;
   width: 18px;
   height: 18px;
-  margin-inline-start: calc(var(--toolbarbutton-inner-padding) / 2);
-  margin-inline-end: calc(var(--toolbarbutton-inner-padding) * 1.5);
+  margin-inline-start: calc(var(--toolbarbutton-padding-inner) / 2);
+  margin-inline-end: calc(var(--toolbarbutton-padding-inner) * 1.5);
   padding: 0;
   appearance: none;
   background: transparent;
@@ -451,13 +451,8 @@ zen-library[open] {
 
 .library-download-progress-cancel {
   opacity: 0;
-}
-
-.library-download-progress-cancel line {
-  fill: none;
-  stroke: currentColor;
-  stroke-width: 2;
-  stroke-linecap: round;
+  -moz-context-properties: fill;
+  fill: var(--toolbox-textcolor);
 }
 
 .library-item-stack:hover .library-download-progress-ring .arc,
@@ -550,7 +545,7 @@ zen-library[open] {
   appearance: none;
   background: transparent;
   border: none;
-  border-radius: calc(var(--border-radius-medium) - 6px);
+  border-radius: var(--border-radius-small);
   color: inherit;
   fill: currentColor;
   -moz-context-properties: fill, fill-opacity;