audit logging search criteria max length

fixes: CNVS-10989

Adds maxlength attribute to the input tags for audit logs under admin tools as
well as other tabs under admin tools.

Test Plan:
  Open Admin tools
  Put tons of data into search fields and make sure it doesnt break.

Change-Id: I8a4eb2840831ae115c6e1b3bbcbd05e170039cc8
Reviewed-on: https://gerrit.instructure.com/29964
Reviewed-by: Anthus Williams <awilliams@instructure.com>
Reviewed-by: Jacob Fugal <jacob@instructure.com>
Tested-by: Jenkins <jenkins@instructure.com>
QA-Review: August Thornton <august@instructure.com>
Product-Review: Nick Cloward <ncloward@instructure.com>