Nathan/167extension pmt advanced search

[ND68]

PR Title

Issue Number(s): extension of #167 .

What does this PR change and why?
Added restriction for chars you can put in phoneNum filter
Added conditional city and state placeholder text for Volunteer Advanced Search
Added case insensitivity and partial match to email filter for Volunteer Advanced Search

Checklist

• [x ] Requirements have been implemented
• [ x] Acceptance criteria are met
• [ x] Database schema docs have been updated or are not necessary
• [ x] Code follows design and style guidelines
• [ x] Commits follow guidelines (concise, squashed, etc)
• [ x] Relevant reviewers (Senior Dev/EM/Designers) have been assigned to this PR

Critical Changes

• Database change/migration to run
• Environment config change
• Breaking API change

Related PRs

• Nathan/167 [PMT] - Advanced Search #169

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