sysutils/navi: update to 2.16.0

Breaking changes:
-Change default widths (#506)
-Remove support for Alfred (#509)
-Remove support for --save (#510)
-Remove support for --no-preview (#515)
-Remove support for navi query and navi best (#516)
-Fail on bad colors (#519)
-Rename osx target to apple-darwin (#526)

New features:
-Add navi fn map::expand
-Allow tag filtering (#508)
-Allow configuration of shell used for shell out (#511)
-Add support for config files (#518)

Fixes:
-Use \ for paths in Windows (#499)
-Fix navi fn url::open (#503)
-Fix Windows builds (#522)

Code quality:
-Remove unnecessary uses of vector of files (#507)
-Use anyhow::Result
-Document all environment variables (#512)
-Refactor writer packages (#517)
-Simplify regex dependency (#525)
-Refactor scripts (#527)
-Improve documentation (#529)

Please check navi --help and /docs for more instructions in case you use the
features removed in this release.

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