Correctly calculate width (#578)

Author: schroda

src/screens/Reader.tsx

@@ -404,7 +404,9 @@ export function Reader() {
                 flexDirection: 'column',
                 alignContent: 'center',
                 justifyContent: 'center',
-                minWidth: settings.staticNav ? 'calc((100vw - (100vw - 100%)) - 300px)' : '100vw - (100vw - 100%)', // 100vw = width excluding scrollbar; 100% = width including scrollbar
+                minWidth: settings.staticNav
+                    ? 'calc((100vw - (100vw - 100%)) - 300px)'
+                    : 'calc(100vw - (100vw - 100%))', // 100vw = width excluding scrollbar; 100% = width including scrollbar
                 minHeight: '100vh',
                 marginLeft: settings.staticNav ? '300px' : 'unset',
             }}