docs: move overlay, progress, and webSocketURL examples to client (#3721)

* docs: move `overlay` and `progress` examples to `client`

* docs: move `webSocketURL` examples to `client`

* test: fix

Author: snitin315

.gitignore

@@ -5,6 +5,7 @@ npm-debug.log
 .idea
 
 client
+!/examples/client
 !/test/client
 coverage
 node_modules

examples/overlay/README.md renamed to examples/client/overlay/README.md

@@ -2,7 +2,7 @@
 
 // our setup function adds behind-the-scenes bits to the config that all of our
 // examples need
-const { setup } = require("../util");
+const { setup } = require("../../util");
 
 module.exports = setup({
   context: __dirname,

examples/overlay/app.js renamed to examples/client/overlay/app.js

@@ -2,7 +2,7 @@
 
 // our setup function adds behind-the-scenes bits to the config that all of our
 // examples need
-const { setup } = require("../util");
+const { setup } = require("../../util");
 
 module.exports = setup({
   context: __dirname,

examples/overlay/webpack.config.js renamed to examples/client/overlay/webpack.config.js

@@ -2,7 +2,7 @@
 
 // our setup function adds behind-the-scenes bits to the config that all of our
 // examples need
-const { setup } = require("../util");
+const { setup } = require("../../util");
 
 module.exports = setup({
   context: __dirname,

examples/progress/README.md renamed to examples/client/progress/README.md

@@ -102,7 +102,7 @@ describe("basic", () => {
       );
       const examplePath = path.resolve(
         __dirname,
-        "../../examples/web-socket-url"
+        "../../examples/client/web-socket-url"
       );
       const cp = execa("node", ["--port", port, cliPath], { cwd: examplePath });
 
@@ -153,7 +153,7 @@ describe("basic", () => {
       );
       const examplePath = path.resolve(
         __dirname,
-        "../../examples/web-socket-url"
+        "../../examples/client/web-socket-url"
       );
       const cp = execa(
         "node",