style: transparent nav buttons, tighter calendar breadcrumb

Drops the default button background/shadow from the header 'more', calendar
nav and Today buttons, and tightens breadcrumb spacing so Q/month/year read
as inline links rather than buttons.

styles.css

@@ -189,6 +189,7 @@
 .waypoint-calendar .waypoint-day.today.has-note::after {
 	background-color: var(--text-accent);
 }
+
 /* ── Recent Files ── */
 
 .waypoint-recent-filter {
@@ -309,6 +310,27 @@
 	display: none;
 }
 
+[data-type="waypoint-view"] button.waypoint-header-more,
+button.waypoint-calendar-nav-btn,
+button.waypoint-calendar-today-btn {
+	background-color: transparent;
+	box-shadow: none;
+
+
+}
+
+.waypoint-calendar-breadcrumb {
+	gap: 4px;
+
+	.waypoint-clickable {
+		padding: 0px;
+
+		&:hover {
+			background-color: transparent;
+		}
+	}
+}
+
 /* ── Drag-and-drop ── */
 
 .waypoint-bm-dragging {