v0.4.1

• Remove padding around the document view
• Fix installation script
• Fix build issues
• Fix .desktop file installation
• Fix skinny statusbar
• Fix panel file name display (absolute vs relative path)
• Fix session file overwriting without prompt
• Fix session path to file
• Add session button to panel
• Fix session button label
• Fix synctex not working after reloading file
• Update session files if in session on application exit
• Fix loading session opening second window on launch