Allow the zed app to connect to both the old and new rpc endpoints

In the case of the new Next.js app, the app will follow a redirect
from 'zed.dev/rpc' to the subdomain where the rust service is hosted.
Until then, the app will connect directly to zed.dev/rpc.

Cargo.lock

@@ -486,9 +486,9 @@ dependencies = [
 
 [[package]]
 name = "async-tungstenite"
-version = "0.14.0"
+version = "0.16.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8645e929ec7964448a901db9da30cd2ae8c7fecf4d6176af427837531dbbb63b"
+checksum = "5682ea0913e5c20780fe5785abacb85a411e7437bf52a1bedb93ddb3972cb8dd"
 dependencies = [
  "async-tls",
  "futures-io",
@@ -2452,15 +2452,6 @@ version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "64e9829a50b42bb782c1df523f78d332fe371b10c661e78b7a3c34b0198e9fac"
 
-[[package]]
-name = "input_buffer"
-version = "0.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f97967975f448f1a7ddb12b0bc41069d09ed6a1c161a92687e057325db35d413"
-dependencies = [
- "bytes 1.0.1",
-]
-
 [[package]]
 name = "instant"
 version = "0.1.9"
@@ -5186,16 +5177,15 @@ checksum = "85e00391c1f3d171490a3f8bd79999b0002ae38d3da0d6a3a306c754b053d71b"
 
 [[package]]
 name = "tungstenite"
-version = "0.13.0"
+version = "0.16.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5fe8dada8c1a3aeca77d6b51a4f1314e0f4b8e438b7b1b71e3ddaca8080e4093"
+checksum = "6ad3713a14ae247f22a728a0456a545df14acf3867f905adff84be99e23b3ad1"
 dependencies = [
  "base64 0.13.0",
  "byteorder",
  "bytes 1.0.1",
  "http",
  "httparse",
- "input_buffer",
  "log",
  "rand 0.8.3",
  "sha-1 0.9.6",
@@ -5698,7 +5688,6 @@ dependencies = [
  "anyhow",
  "async-recursion",
  "async-trait",
- "async-tungstenite",
  "chat_panel",
  "client",
  "clock",