vitest: add page (#15145)

* vitest: add page

* vitest: fix message to follow style guide

Co-authored-by: Wiktor Perskawiec <git@spageektti.cc>

---------

Co-authored-by: Wiktor Perskawiec <git@spageektti.cc>

pages/common/vitest.md

@@ -0,0 +1,36 @@
+# vitest
+
+> Fast, modern testing framework built for Vite, offering seamless integration, TypeScript support, and a Jest-compatible API for unit, integration, and snapshot testing.
+> More information: <https://vitest.dev/guide>.
+
+- Run all available tests:
+
+`vitest run`
+
+- Run the test suites from the given files:
+
+`vitest run {{path/to/file1 path/to/file2 ...}}`
+
+- Run the test suites from files within the current and subdirectories, whose paths match the given regular expression:
+
+`vitest run {{regular_expression1}} {{regular_expression2}}`
+
+- Run the tests whose names match the given regular expression:
+
+`vitest run --testNamePattern {{regular_expression}}`
+
+- Watch files for changes and automatically re-run related tests:
+
+`vitest`
+
+- Run tests with coverage:
+
+`vitest run --coverage`
+
+- Run all tests but stops immediately after the first test failure:
+
+`vitest run --bail=1`
+
+- Display help:
+
+`vitest --help`