fix(core): legacy app navigation snapper width on RTL

After ec9e283 there was still such a problem with the legacy app navigation
snapper that its width was only 266 px on the RTL layout instead of the
normal 300 px. The 266 px is the default width of Snap.js module. While the
left side snapper width is configured with the property maxPosition, the right
side snapper is configured by passing a negative value for the property
minPosition.

Signed-off-by: Pauli Järvinen <[email protected]>

Author: paulijar

core/src/init.js

@@ -122,6 +122,7 @@ export const initCore = () => {
 			element: document.getElementById('app-content'),
 			disable: SNAPPER_CLOSE,
 			maxPosition: 300, // $navigation-width
+			minPosition: -300, // $navigation-width for RTL
 			minDragDistance: 100,
 		})