CLD-8395 Integrate playwright into E2E tests (#28492)

* Finalize Playwright E2E scripts integration, add videos
* Add suggestion by Saturn

Co-authored-by: Saturnino Abril <5334504+saturninoabril@users.noreply.github.com>

---------

Co-authored-by: Mattermost Build <build@mattermost.com>
Co-authored-by: Saturnino Abril <5334504+saturninoabril@users.noreply.github.com>

e2e-tests/.ci/server.run_cypress.sh

@@ -1,4 +1,5 @@
 #!/bin/bash
+# shellcheck disable=SC2038
 set -e -u -o pipefail
 cd "$(dirname "$0")"
 . .e2erc
@@ -40,5 +41,14 @@ else
   ${MME2E_DC_SERVER} exec -T -u "$MME2E_UID" -- cypress node run_tests.js $TEST_FILTER | tee "../cypress/logs/${LOGFILE_SUFFIX}_cypress.log"
 fi
 
+# Collect run results
+cat > ../cypress/results/summary.json <<EOF
+{
+  "passed": $(find ../cypress/results/mochawesome-report/json/tests/ -name '*.json' | xargs -l jq -r '.stats.passes' | jq -s add),
+  "failed": $(find ../cypress/results/mochawesome-report/json/tests/ -name '*.json' | xargs -l jq -r '.stats.failures' | jq -s add),
+  "failed_expected": 0
+}
+EOF
+
 # Collect server logs
 ${MME2E_DC_SERVER} logs --no-log-prefix -- server > "../cypress/logs/${LOGFILE_SUFFIX}_mattermost.log" 2>&1