Buttons: Fix panel banner buttons

Fixes #365

theme/parts/buttons-fixes.css

@@ -267,3 +267,11 @@ button.close {
 #stop-reload-button .toolbarbutton-icon {
 	margin-top: -2px !important;
 }
+
+/* Panel banner */
+#appMenu-popup .panel-banner-item {
+	margin: 0 0 6px !important;
+}
+#appMenu-popup .panel-banner-item > .toolbarbutton-text {
+	margin-inline: 0 !important;
+}

theme/parts/buttons.css

@@ -52,7 +52,7 @@ button.close,
 	color: var(--gnome-toolbar-color) !important;
 	outline: 0 !important;
 	font: menu !important;
-	-moz-box-align: center;
+	-moz-box-align: center !important;
 }
 .subviewbutton-iconic {
 	-moz-box-pack: center !important;
@@ -101,7 +101,7 @@ menulist,
 }
 .subviewbutton.panel-subview-footer label,
 .panel-footer button,
-#appMenu-popup .panel-banner-item,
+#appMenu-popup .panel-banner-item .toolbarbutton-text,
 #appMenu-popup #appMenu-zoomReset-button2:not(#hack),
 #tracking-protection-preferences-button:not(#hack),
 .findbar-container toolbarbutton.findbar-button,