1.2 Have you translated those text in the language file that I shared with you via link: https://special-brands.xyz/wp-admin/admin.php?path=languages%2Floco%2Fthemes%2Fxstore-he_IL.po&bundle=xstore&domain=xstore&page=loco-theme&action=file-edit ? you have to search/find every single word and translate on your own. You can search on Google that how to use the loco translate plugin.
3- To style the product added to cart notification you have to make it with custom CSS code. You can add your own custom CSS code in the XSTORE >> Theme settings >> Theme Custom CSS >> Global CSS.
4- To add the product filters in your store simply navigate to the Dashboard >> Appearance >> Widgets >> Then add the products filters in the “Shop Sidebar” or “Shop filters” then check back to your site after clearing the browser cache. See the image: https://postimg.cc/vDBHm6Nv
5- It appear fine for me check the image: https://postimg.cc/7CS8hq3D and check back to your site after clearing the browser cache.
Regards 8Themes Team.
One standard license is valid only for 1 project. Running multiple projects on a single license is a copyright violation.