* Add the ability to sync kube config files

- Will update when the files changes

- add KUBECONFIG_SYNC label

- fix rebase and change to addObservableSource

- move UI to user settings

- support shallow folder watching

- add some unit tests for the diff-er
Signed-off-by: Sebastian Malton <sebastian@malton.name>

* responding to review comments
Signed-off-by: Sebastian Malton <sebastian@malton.name>

* fix tests and add try/catch
Signed-off-by: Sebastian Malton <sebastian@malton.name>

* always sync c&p folder, remove bad rebase
Signed-off-by: Sebastian Malton <sebastian@malton.name>

* fix preferences
Signed-off-by: Sebastian Malton <sebastian@malton.name>

* Fix settings saving and catalog view
Signed-off-by: Sebastian Malton <sebastian@malton.name>

* fix unit tests
Signed-off-by: Sebastian Malton <sebastian@malton.name>

* fix synced clusters not connectable
Signed-off-by: Sebastian Malton <sebastian@malton.name>

* change to non-complete shallow watching
Signed-off-by: Sebastian Malton <sebastian@malton.name>

* fix sizing
Signed-off-by: Sebastian Malton <sebastian@malton.name>

* Catch readStream errors
Signed-off-by: Sebastian Malton <sebastian@malton.name>

* don't clear UserStore on non-existant preference field, fix unlinking not removing items from source
Signed-off-by: Sebastian Malton <sebastian@malton.name>

* change label to file
Signed-off-by: Sebastian Malton <sebastian@malton.name>