What issue type does this pull request address? (keep at least one, remove the others)
/kind enhancement
/kind feature

What does this pull request do? Which issues does it resolve? (use resolves #<issue_number> if possible)
Partially resolves #1218 adding support to disable completely the initial sync

Please provide a short message that should be published in the DevSpace release notes
Enhance the configuration capabilities of DevSpace to enable the possibility of disabling the initial sync, similar to how you can currently disable the upload or download.

What else do we need to know?
There are use cases where syncing is required only for files changed after the development or sync process has been initiated, rather than fully synchronizing the remote or local repository.