Adding missing versions, adding DuckDuckGo browser

[jaydiablo]

Fixes #2396. This is mostly a version update for various browsers that had no version from our Nov logs. I added Android and iOS versions where necessary as well.

Also noticed a number of DuckDuckGo UAs that appear to go with a DuckDuckGo browser available for Mac, iOS and Android, so added a version-less browser and patterns for those to be detected now.

Apparently Chrome 83 dropped support for Android 4.4, so I split the Chrome and Android Webview files at 82/83 and removed Android 4.4 from the 83+ files.

[codecov]

Codecov Report

Merging #2397 (b296c37) into 6.0.x (8e8d1de) will decrease coverage by 0.82%.
The diff coverage is 10.85%.

@@             Coverage Diff              @@
##              6.0.x    #2397      +/-   ##
============================================
- Coverage     51.77%   50.95%   -0.83%     
  Complexity      899      899              
============================================
  Files          1804     1808       +4     
  Lines         65641    66986    +1345     
  Branches      29524    30484     +960     
============================================
+ Hits          33986    34132     +146     
- Misses        31655    32854    +1199     

Flag	Coverage Δ	Complexity Δ
full	45.85% <9.66%> (-0.78%)	0.00 <0.00> (ø)
lite	2.12% <0.71%> (-0.02%)	0.00 <0.00> (ø)
standard	26.43% <5.60%> (-0.44%)	0.00 <0.00> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ	Complexity Δ
...rowsers/android-webview/android-webview-83-on.json	0.00% <0.00%> (ø)	0.00 <0.00> (?)
...wsers/android-webview/android-webview-generic.json	36.95% <0.00%> (-2.58%)	0.00 <0.00> (ø)
...r-agents/browsers/chrome/chrome-android-83-on.json	7.73% <0.00%> (ø)	0.00 <0.00> (?)
...agents/browsers/chrome/chrome-android-generic.json	76.19% <0.00%> (-2.50%)	0.00 <0.00> (ø)
...ser-agents/browsers/chrome/chrome-ios-generic.json	60.00% <0.00%> (-3.16%)	0.00 <0.00> (ø)
...ser-agents/browsers/edge-browser/edge-android.json	74.57% <0.00%> (-2.62%)	0.00 <0.00> (ø)
...ser-agents/browsers/edge-browser/edge-generic.json	6.66% <0.00%> (-0.48%)	0.00 <0.00> (ø)
...rs/firefox-on-android/firefox-android-generic.json	10.41% <0.00%> (-1.49%)	0.00 <0.00> (ø)
...s/browsers/firefox-on-ios/firefox-ios-generic.json	0.00% <0.00%> (ø)	0.00 <0.00> (ø)
.../browsers/mobile-safari/mobile-safari-generic.json	40.49% <0.00%> (-1.39%)	0.00 <0.00> (ø)
... and 35 more

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[asgrim]

Thanks @jaydiablo 👍