* Adds a "show only changed files" command to command palette and graph

* Rewords command to 'open changed & close unchanged files'

* Adds a native push implementation behind experimental flag

* Adds more git error cases

* Adds a native pull implementation behind experimental flag

* Fixes git error case

* Throws errors at git level instead

* Uses custom error objects

* Avoids reaching out to interface with Repository
Avoids extra lookups and just uses branch ref

* Fixes provider service calling wrong command

* Looks also at other error properties in decoding stage

* Catches at git provider and outputs message

* Adds 'remote ahead' case

* Always logs errors at provider level

---------

Co-authored-by: Eric Amodio <eamodio@gmail.com>

Refs: https://github.com/gitkraken/vscode-gitlens/discussions/2803#discussioncomment-6485140