changes:
- improved design of the page action display
- Enabled Firefox ESR
- persistent random generator data is always stored in the settings but cleared on restart if the store flag is not set
- cleaned up the options page
new features:
- setting to set an interval to clear the persistent random generator data
- setting for the ask deny mode
- ask only once can now also combine the API-types
fixes:
- unnecessary check for context type in getImageData broke websites
- getContext was not asked in ask mode.