feat: introduce frames (#6123)

Co-authored-by: dwelle <luzar.david@gmail.com>

src/components/HelpDialog.tsx

@@ -164,6 +164,7 @@ export const HelpDialog = ({ onClose }: { onClose?: () => void }) => {
               label={t("toolBar.eraser")}
               shortcuts={[KEYS.E, KEYS["0"]]}
             />
+            <Shortcut label={t("toolBar.frame")} shortcuts={[KEYS.F]} />
             <Shortcut
               label={t("labels.eyeDropper")}
               shortcuts={[KEYS.I, "Shift+S", "Shift+G"]}