Logbeam 0.6.0

Added

• ANSI colours in logs from CI runners, Docker and CLIs are drawn as colours, and the escape codes no
  longer get in the way of levels, times, search and filters (#3).
• Your own level words in Settings, e.g. ALERT → ERROR or AUDIT → INFO (#6).
• Light theme for the log viewer, Compare, Settings and the popup: like the system, or always dark or
  light (#5).
• Keyboard shortcuts list: press ? (or the ? button) in the log viewer to see its keys (#4).
• Percentiles for numbers and durations. Field statistics of a field like took=154ms or
  "duration": 950 also show min, median, p95, p99 and max; click one to see only the entries at or
  above it (took>=1.2s).

Fixed

• Typing a bookmark note or table columns no longer triggers the viewer's keys: an e in the note
  jumped to the next error and lost what was typed.
• Esc in the search box could be undone 150 ms later by the search still waiting for typing to stop.
• The end-to-end test expected numbers formatted for the machine's locale.