Add the ability to sync kube config files (#2567)

* 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>

package.json

@@ -237,6 +237,7 @@
   "devDependencies": {
     "@emeraldpay/hashicon-react": "^0.4.0",
     "@material-ui/core": "^4.10.1",
+    "@material-ui/icons": "^4.11.2",
     "@material-ui/lab": "^4.0.0-alpha.57",
     "@pmmmwh/react-refresh-webpack-plugin": "^0.4.3",
     "@testing-library/jest-dom": "^5.11.10",
@@ -254,7 +255,7 @@
     "@types/hoist-non-react-statics": "^3.3.1",
     "@types/html-webpack-plugin": "^3.2.3",
     "@types/http-proxy": "^1.17.5",
-    "@types/jest": "^25.2.3",
+    "@types/jest": "^26.0.22",
     "@types/js-yaml": "^3.12.4",
     "@types/jsdom": "^16.2.4",
     "@types/jsonpath": "^0.2.0",
@@ -344,7 +345,7 @@
     "sharp": "^0.26.1",
     "spectron": "11.0.0",
     "style-loader": "^1.2.1",
-    "ts-jest": "^26.1.0",
+    "ts-jest": "26.3.0",
     "ts-loader": "^7.0.5",
     "ts-node": "^8.10.2",
     "type-fest": "^1.0.2",