Make date portion of the search optional

[mdconatser]

As a user trying to search for an email by keyword across my whole history, I do not want to even select any kind of option for the dates. I would like to just enter my keyword and search, but right now I'm forced to manually scroll back in time to select a date range from then until today.

Acceptance Criteria

• By default, entering a keyword and selecting search will search across all dates.

[mdconatser]

tested on android

[Minyahil40]

tested on iPhone

[tatikozh]

tested on iPad

[wpbear1742]

Verified - Test PASS