update toolbar, tabbar, and paneheader

chrome/skin/default/zotero/overlay.css

@@ -198,14 +198,6 @@
 	height:24px;
 }
 
-#zotero-collections-toolbar {
-	padding-inline-start: 2px;
-}
-
-#zotero-items-toolbar {
-	margin-inline-end: 10px;
-}
-
 .zotero-button-clear-image {
   list-style-image: none
 }

scss/components/_toolbar.scss

@@ -37,7 +37,6 @@
 		width: 28px;
 		height: 28px;
 		padding: 0px 4px 0px 4px;
-		margin: 0px 4px 0px 4px;
 
 		&[type="menu"] {
 			min-width: 0;
@@ -49,16 +48,23 @@
 			box-shadow: 0 0 0 var(--width-focus-border) var(--color-focus-border);
 		}
 	}
-
-	&:first-child {
-		margin-inline-start: 0;
 }
 
-	&:last-child {
-		margin-inline-end: 0;
+#zotero-items-toolbar,
+#zotero-tabs-toolbar {
+	toolbarbutton {
+		margin: 0px 4px 0px 4px;
 	}
 }
 
+#zotero-items-toolbar:first-child {
+	margin-inline-start: -4px;
+}
+
+#zotero-collections-toolbar {
+	border-bottom: 1px solid transparent;
+}
+
 #zotero-collections-search {
 	max-width: 0;
 	transition: max-width 0.2s ease;

scss/elements/_paneHeader.scss

@@ -16,7 +16,7 @@ pane-header {
 	.title {
 		align-self: center;
 		margin-top: calc(0px - var(--editable-text-padding-block));
-		padding: 1px 4px;
+		padding: 2px 0px 1px 0px;
 		flex: 1 1 0;
 		font-weight: 590;
 		line-height: 1.333;

scss/mac/_tabBar.scss

@@ -1,6 +1,6 @@
 #tab-bar-container {
 	--safe-area-start: 73px;
-	--safe-area-end: 20px;
+	--safe-area-end: 0px;
 }
 
 :root:is([sizemode=fullscreen]) {