UI/API: Create CI workflow triggered on PR #1

Job	Run time
setup-job	3s
build-check (btr-main-app)	1m 33s
cypress-e2e-test (btr-main-app)	2m 25s
build-check (btr-common-components)	2m 0s
unit-testing (btr-main-app)	1m 31s
linting (btr-main-app)	59s
cypress-e2e-test (btr-common-components)	2m 59s
build-check (btr-layouts)	2m 53s
linting (btr-common-components)	56s
unit-testing (btr-common-components)	1m 18s
cypress-e2e-test (btr-layouts)	2m 25s
linting (btr-layouts)	52s
unit-testing (btr-layouts)	1m 6s
	21m 0s

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