Fixed offset calculation.

Fixes for BinaryNinja 3.x

More user-friendly UI when completing the decompiler process.

Fixed bug with wrong offset calculation and crash when the view was open but no file was loaded.

Fixed interaction with Ghidra scripting engine.

• Scrolling no longer resets on offset change
• Proper function handling for different offsets

Highlighter now follows the color scheme of the current theme settings thanks to: #4

• Addressed the possible confusion with macOS file chooser dialog
• Fixed some typos in README and plugin.json
• Search for parameter values was limited to first 300 characters for a very minor performance increase

• Added some basic error handling
• Renaming function arguments no longer breaks syntax highlight
• Added highlights for casting

• Ghinja decompiling job does not start automatically but rather after opening the Ghinja window and clicking inside it
• Rename added
• Search added
• Improved highlighter