fix alignment of month names in month view

Signed-off-by: Fabrizio Iannetti <fabrizio.iannetti@gmail.com>

src/ui/calendar.rs

@@ -238,7 +238,7 @@ impl<'a> CalendarMonthView<'a> {
                 line_height: LineHeight::default(),
                 color: fg,
                 font: renderer.default_font(),
-                horizontal_alignment: alignment::Horizontal::Right,
+                horizontal_alignment: alignment::Horizontal::Left,
                 vertical_alignment: alignment::Vertical::Center,
                 shaping: Shaping::default(),
                 });