Perf/optimize research export

[KrakenMInitials]

Main Issue: One of the fEMR deployments crashed during research export. The issue is hypothesized to be due to limited compute resources and lack of RAM in the machines with fEMR.

Solution: Identified duplicate data representations and streamlined export file creation removing any redundancies in data transformations.

Observations:

• significantly cut down time for export production from ~30 seconds to ~8 seconds.
• inconclusive whether RAM improvements were made

Notes

• Due to deprecated openjdk:8-jre-alpine base docker image, found workaround with eclipse-temurin:8-jre-alpine-3.23.
• Added minor UX improvements to Research Export page but may be overridden with UI/UX reworks
• New research export code makes use of OS configured temp directory to build file and set file as response.
• Replacement with eclipse-temurin image causes file permission issues when old code is built into a docker container and research export is ran. PR essentially also contains fixes to research export beyond docker image replacement.