[B5] Bootstrap 5 support for datatables

[biyeun]

Technical Summary

This PR introduces two bootstrap5 related datatables javscript dependencies

• datatables.net-b5, which is the bootstrap5 related styling for datatables
• datatables.net-fixedcolumns-b5, which is the bootstrap 5 version of the fixedColumns datatables extension that we use in reports

An overview of this is included in the styleguide work

This PR also introduces style changes to datatables.scss needed for bootstrap 5 upgrade and updates to paths in the bootstrap 5 version of requirejs_config.js

Safety Assurance

Safety story

isolated only to bootstrap 5 changes. none of which is being used in production on critical user workflows at this time. changes can be previewed in the styleguide which is on staging

Automated test coverage

diffs are covered

QA Plan

not needed

Rollback instructions

leaving unchecked due to bootstrap 5 diffs adding rollback complications. it's generally fine to rollback if done immediately, but if a long time has passed only the non-diff commits can be rolled back without causing conflicts.

• This PR can be reverted after deploy with no further considerations

Labels & Review

• Risk label is set correctly
• The set of people pinged as reviewers is appropriate for the level of risk of the change