Add IDs to DOM elements

Specifically:

1. 'Customise Table 1. Columns' dialogue
2. 'Customise Table Columns' drop-down
3. Values within the drop-down

changed milestone to %Sprint 95

added workflowIn Progress label

added workflowReview Required label and removed workflowIn Progress label

mentioned in merge request !3 (merged)

changed milestone to %Sprint 96

added workflowRework label and removed workflowReview Required label

changed milestone to %Sprint 97

added workflowReview Required label and removed workflowRework label

closed via merge request !3 (merged)

mentioned in commit fd48ab90

unassigned @id353