HPCC-10943 Progress bar hard to see in new ECL Watch

Override claro style for progress bar  background color to give user easier
view of the progress completed.

Signed-off by: Miguel Vazquez <miguel.vazquez@lexisnexis.com>
HPCC-10943 Add overwrite option when uploading the same file

Fixes HPCC-10943

Signed-off by: Miguel Vazquez <miguel.vazquez@lexisnexis.com>