Add ability to push with commit

My team would love the ability to push at the same time as commit. Possibly a checkbox that can be enabled by default in Preferences? That way you don't have to run both commands separately.

Start by locating the commit and push command entry points in the plugin, then inspect how Preferences are defined and read. Confirm how the existing commands behave before implementing the requested integration; done means committing can optionally push immediately, with a preference controlling the default behavior.

Written by the indexing model from the issue text.