UI: Students Page Table Enhancementa

[cycomachead]

• The table should be a bit wider, maybe max 90% screen width or 1680px
• Hide the Canvas ID column, i think
• The word 'Email' should be replaced with a ✔️ or ❌ emoji
• The edit / delete buttons could be collapsed into an 'Actions' column
• The search field should implicitly strip out '@berkeley.edu if you're searching an email or search on the full text of the email as a hidden column