Everywhere: Hoist the Libraries folder to the top-level

Author: https://github.com/trflynn89
Commit: 93712b24bf
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/2256
Reviewed-by: https://github.com/sideshowbarker

Libraries/LibJS/Tests/const-declaration-missing-initializer.js

@@ -0,0 +1,5 @@
+test("missing initializer in 'const' variable declaration is syntax error", () => {
+    expect("const foo").not.toEval();
+    expect("const foo = 1, bar").not.toEval();
+    expect("const foo = 1, bar, baz = 2").not.toEval();
+});