Improve performance of issue and merge request comments

Currently long conversations take a long time to load.

Pagination of conversations will make comment heavy screens load in much faster and prevent app stalling.

This is a meta issue tracking progress.

• pagination
• improve markdown parser speed
• optimise table view cell layout code

Reassigned to @matthew.wilkinson

Most recent at the top is actually a bad idea... better to have most recent at bottom.

Marked the task improve markdown parser speed as completed

Marked the task improve markdown parser speed as incomplete

Marked the task improve markdown parser speed as completed

Marked the task improve markdown parser speed as incomplete

Status changed to closed