Update tsconfig to latest tns-core-modules' typings changes.
Update tsconfig to latest tns-core-modules' typings changes.

NativeScript/sample-Groceries,poly-mer/community,poly-mer/community,poly-mer/community,tjvantoll/sample-Groceries,tjvantoll/sample-Groceries,NativeScript/sample-Groceries,NativeScript/sample-Groceries,tjvantoll/sample-Groceries