resharding button (#341)

* add resharding flag context

* resharding up and down buttons

* confirmation dialogs

* format

* do not allow resharding down, if already one shard

* support for custom sharding

* review fixes

* refactor: split into component

* format

* audit fix

* audit fix - ignore low unfixable issues

Author: generall

.npmrc

@@ -0,0 +1,3 @@
+# Only show audit warnings for moderate, high, and critical severity
+# Low severity vulnerabilities are ignored
+audit-level=moderate