+251 Patch fixing the iOS crashes

Another quick round of fixes targeted at fixing problems that have been found in the most recent updates.

Fixed

• Made all of the back buttons be in the same position while also adapting to left handed mode
• Yet another fix to the requirements bug where requirements are sometimes shown incorrectly
• Set the crafting filters off by default
• Performance improvements to the inventory screen
• Fixing the crash happening on iOS while using the inventory
• Fixed the overflowing text when listing route requirements
• Fixed the route requirements only being shown if you are in the location from where you try to travel
• Fixed location names being shown twice in route requirements
• Added a drop down icon to leaderboards change button
• Changed how required items are shown in the crafting UI (now uses x/y format instead of how many are still needed)