helper method for FontId

Signed-off-by: kernelkind <kernelkind@gmail.com>
Signed-off-by: William Casarin <jb55@jb55.com>

crates/notedeck/src/style.rs

@@ -1,7 +1,9 @@
-use egui::{FontFamily, TextStyle};
+use egui::{Context, FontFamily, FontId, TextStyle};
 
 use strum_macros::EnumIter;
 
+use crate::fonts::get_font_size;
+
 #[derive(Copy, Clone, Eq, PartialEq, Debug, EnumIter)]
 pub enum NotedeckTextStyle {
     Heading,
@@ -43,4 +45,8 @@ impl NotedeckTextStyle {
             Self::Tiny => FontFamily::Proportional,
         }
     }
+
+    pub fn get_font_id(&self, ctx: &Context) -> FontId {
+        FontId::new(get_font_size(ctx, self), self.font_family())
+    }
 }