v1.4.0

• Upgrade to python 3.11
• Allow sorting by columns in planet item browser, warehouse item browser, and ship item browser
• Show item price differences from base price in planet item browser
• Add "trading console" store item-- allows you to see item prices on other planets without travelling
• Add sounds effects (can be disabled in-game if they're too annoying)
• Add tooltips for all buttons/labels (can be disabled in-game if they're too annoying)
• Use alternating row colors for all item display tables (slightly less visually confusing)
• Improve search-by-planet name behaviour/functionality in planet browser
• Improve game description text in "about" window
• Improve performance when there are a large number of planets (thousands)
• Re-organize information bar to be more space efficient
• Add player health and related mechanics (player loses health every day if no money, player loses health from battles, player dies if health reaches 0)
• Aesthetic / usability improvements to the item price history window
• Increase the number of possible randomly-generated planet names
• Scout fleet is no longer free-- you have to buy one, just like the battle fleet, before you can go on scout expeditions
• Add daily costs-- player has a default daily living cost (200), and buying/upgrading scout and battle fleets increases the player's daily costs
• Planet browser shows count of currently available planets
• Planet browser shows a "tail" of recently visited planets by coloring them different shades of green
• Fixed various lingering bugs