function SetCachedItemId( key, value )
	{
		return itemDatabase( 'readwrite', ( store ) =>
		{
			store.put( value, key );
			return PromisifyDbRequest( store.transaction );
		} );
	}
Set a value with a key.
@param {IDBValidKey} key - The key to store the value under
@param {string} value - The value to store
@returns {Promise<void>} A promise that resolves when the transaction completes