getAll and getRange count needs to be smaller than 2^32 -1

[haroldvandy2013]

if count is greater than 2^32, there will be error like this:
Failed to execute 'getAll' on 'IDBObjectStore': Value is outside the 'unsigned long' value range.

based on MDB doc, the supported count range is between 0 to 2^32 -1 (inclusive)
https://developer.mozilla.org/en-US/docs/Web/API/IDBIndex/getAll#count