Touhou Dit-dah Repeller v1.0a Update

hi

• Corrected the "A" code that was incorrectly written in the catalog.
• Fixed the issue where the result screen button only worked once.
• You can open the catalog from the options menu.
• Changed the correction signal to "H."
• Added a pause menu.
• Added a whitespace SFX.
• While entering Morse code, you can check the character indicated by the current code.