chore(test): clean lint and warning baseline

libs/shared/testing/src/index.ts

@@ -0,0 +1 @@
+export { installDuplicateVideoJsQualityLevelsWarnFilter } from './lib/console-warn-filters';

libs/shared/testing/src/lib/console-warn-filters.ts

@@ -0,0 +1,19 @@
+export function installDuplicateVideoJsQualityLevelsWarnFilter(): void {
+    const originalConsoleWarn = console.warn.bind(console);
+
+    console.warn = (...args: unknown[]) => {
+        const message = args
+            .filter((arg): arg is string => typeof arg === 'string')
+            .join(' ');
+
+        if (isDuplicateVideoJsQualityLevelsWarning(message)) {
+            return;
+        }
+
+        originalConsoleWarn(...args);
+    };
+}
+
+function isDuplicateVideoJsQualityLevelsWarning(message: string): boolean {
+    return message.includes('A plugin named "qualityLevels" already exists.');
+}