Talent Picker Component - default value as "0"

[maxceem]

Follow up from #3950 (comment)

When we unfocus "people" or "duration" field and there is no value, then set "0" as a value automatically.

[codejamtc]

Fixed in Dev: 🆗
URL: https://connect.topcoder-dev.com/new-project/talent-as-a-service-specialists

https://monosnap.com/file/SuFWWsZXm0y21tpKIdrjFScIVERuie

[drasticdpk]

Verified on prod env.