allow case insensitive TRUE/true/True/trUE/etc

[drizuid]

---

• [X ] I have read the contributing guideline and understand that I have made the correct modifications

---

Description:

https://discord.com/channels/354974912613449730/1162780616228606024
this user put LOG_FILE=TRUE which did not work for log creation because our logic specifically checks for true not TRUE
this change will accept TRUE or true

Benefits of this PR and context:

it's a simple change to cover some case insensitivity issues

How Has This Been Tested?

tested in shell, not in container

Source / References:

devbox ~ # LOG_FILE=True
devbox ~ # if [ "${LOG_FILE,,}" = "true" ]; then echo yep; fi
yep
devbox ~ # LOG_FILE=TRUE
devbox ~ # if [ "${LOG_FILE,,}" = "true" ]; then echo yep; fi
yep
devbox ~ # LOG_FILE=truE
devbox ~ # if [ "${LOG_FILE,,}" = "true" ]; then echo yep; fi
yep
devbox ~ # LOG_FILE=true
devbox ~ # if [ "${LOG_FILE,,}" = "true" ]; then echo yep; fi
yep

[github-actions]

Thanks for opening this pull request! Be sure to follow the pull request template!

[drizuid]

devbox ~ # LOG_FILE=false
devbox ~ # if [ "${LOG_FILE,,}" = "true" ]; then echo yep; fi
devbox ~ # LOG_FILE=
devbox ~ # if [ "${LOG_FILE,,}" = "true" ]; then echo yep; fi
devbox ~ # LOG_FILE=False
devbox ~ # if [ "${LOG_FILE,,}" = "true" ]; then echo yep; fi
devbox ~ #

[LinuxServer-CI]

I am a bot, here are the test results for this PR:
https://ci-tests.linuxserver.io/lspipepr/duckdns/b68625eb-pkg-b68625eb-dev-62273c152f4b43c88b4bd8ea85577bd2214d6e07-pr-65/index.html
https://ci-tests.linuxserver.io/lspipepr/duckdns/b68625eb-pkg-b68625eb-dev-62273c152f4b43c88b4bd8ea85577bd2214d6e07-pr-65/shellcheck-result.xml

Tag	Passed
amd64-b68625eb-pkg-b68625eb-dev-62273c152f4b43c88b4bd8ea85577bd2214d6e07-pr-65	✅
arm64v8-b68625eb-pkg-b68625eb-dev-62273c152f4b43c88b4bd8ea85577bd2214d6e07-pr-65	✅