2.0 beta 3

Superseded by v2.0-beta.4

Changes from v2.0-beta.2:

• Adjusted the commentfields config option to be future-proof (#116; breaking change: see below)
• Snippet UI texts can now also be configured via $attrs in helper call (inspired by #123)
• Comment list can be configured via $attrs to use <ol> instead of default <ul> (#119)
• Removed hardcoded <strong> tag from author name in comments list (#115)
• Added missing strings in French translation (thx @yoanmalie via #120)
• Plugin tested and deemed functional with PHP8 (#91)
• Two small bug fixes (missing translation strings, wrong file name for user-customized snippets)