[v0.1.0-beta] Quick export to CSV feature and bug fixes

Changelog

v0.1.0-beta

• Officially promote Taskies to beta
• Refactor "Export to CSV" controls layout for better look and feel
  • "Preset" box moved to be inline with "Output" box
  • "Date Range" box moved to be inline with "Options" box
  • New option to open File Explorer in export directory on successful export
  • New option to only export data during work week
• Update wording in "Export to CSV" and "Quick Export to CSV" dialogs controls and tooltips to be more concise and clear
• Add menu separator on "Tasks" between "Backup to Database" and "Exports"