[#3569] Implement case-insensitive matching for file extensions #2031

Job	Run time
lint	1m 52s
build	2m 15s
Unit tests: aca-content	2m 28s
Unit tests: aca-shared	2m 31s
E2e test suites: Playwright (actions, 1)	1m 39s
E2e test suites: listViews	1m 42s
E2e test suites: search	1m 48s
E2e test suites: Playwright (folder-rules, 2)	1m 38s
E2e test suites: viewer,infoDrawer,extensions	1m 42s
E2e test suites: copyMoveActions	1m 37s
E2e test suites: deleteActions	1m 37s
E2e test suites: editActions,favoriteActions	1m 41s
E2e test suites: Playwright (viewer, 3)	1m 43s
E2e test suites: uploadDownloadActions	1m 45s
E2e test suites: Playwright (authentication, 4)	1m 39s
E2e test suites: Playwright (navigation, 5)	1m 42s
E2e test suites: Playwright (special-permissions, 6)	1m 40s
E2e test suites: Playwright (pagination, 7)	1m 43s
E2e test suites: Playwright (list-views, 8)	1m 38s
E2e test suites: Playwright (share-action, 9)	1m 38s
E2e test suites: Playwright (copy-move-actions, 10)	1m 41s
Finalize	2s
	37m 41s

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