Fix/job template refinements

[ximekilgsa]

Changes proposed in this pull request

• Fixes some instructions for content editors
• Creates template parts for open and upcoming listings
• Adds new logic that displays info sessions based on date AND time, not just date
• Adds JS to hide info sessions without needing a deployment, since they happen at different times.
• Removes an undisplayed image with an incorrect path that was throwing an error in the console

security considerations

N/A

[github-actions]

🦙 MegaLinter status: ⚠️ WARNING

Descriptor	Linter	Files	Fixed	Errors	Elapsed time
✅ ACTION	actionlint	4		0	0.06s
✅ BASH	shellcheck	1		0	0.08s
✅ BASH	shfmt	1	0	0	0.24s
⚠️ CSS	scss-lint	2		1	3.39s
✅ JAVASCRIPT	prettier	6	0	0	1.17s
✅ JSON	jsonlint	7		0	0.2s
✅ JSON	npm-package-json-lint	yes		no	0.51s
✅ JSON	prettier	7	0	0	1.32s
✅ JSON	v8r	7		0	10.79s
⚠️ MARKDOWN	markdownlint	29	0	8	1.9s
✅ MARKDOWN	markdown-link-check	29		0	15.1s
✅ MARKDOWN	markdown-table-formatter	29	0	0	0.37s
✅ REPOSITORY	checkov	yes		no	15.09s
✅ REPOSITORY	gitleaks	yes		no	0.3s
✅ REPOSITORY	git_diff	yes		no	0.24s
✅ REPOSITORY	grype	yes		no	13.51s
✅ REPOSITORY	secretlint	yes		no	2.62s
⚠️ REPOSITORY	trivy	yes		1	1.3s
✅ REPOSITORY	trivy-sbom	yes		no	1.07s
✅ REPOSITORY	trufflehog	yes		no	4.01s
⚠️ SPELL	cspell	29		26	4.42s
✅ YAML	prettier	16	0	0	1.28s
✅ YAML	v8r	12		0	14.04s
✅ YAML	yamllint	16		0	0.52s

See detailed report in MegaLinter reports

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[wesley-dean-gsa]

Acknowledged that we're supporting 12-hour, am/pm time so this isn't a drop-in replacement:

https://github.com/moment/luxon/blob/master/docs/parsing.md