fix: align ANY DAY toggle with tab buttons in tab bar

The ANY DAY label/icon div sits at the flex-end of the tab bar but
appeared misaligned with the tab buttons. margin-bottom: 6px brings
it to the correct visual baseline.

v1.108.4

package.json

@@ -1,6 +1,6 @@
 {
   "name": "my-weekly-todo-list",
-  "version": "1.108.3",
+  "version": "1.108.4",
   "description": "A web-based weekly task management application that organizes to-dos and calendar events in a single, intuitive weekly view",
   "main": "index.js",
   "scripts": {

src/components/WeeklyView.tsx

@@ -7921,6 +7921,7 @@ export default function WeeklyView() {
                                 alignItems: "center",
                                 gap: "4px",
                                 marginRight: "4px",
+                                marginBottom: "6px",
                             }}
                             title={somedayExpanded ? "Collapse" : "Expand"}
                         >