Fix HTTP web demo (#3407)

* Revert ttf-parser from 0.19.2 to 0.19.1

0.19.2's doesn't work with wasm in debug builds

* Update to poll-promise 0.3.0

* Publish new web demo

* Fix typo in changelog

* Explain why image_viewer is not part of the official web demo app

* Fix typos

* Make rfd native-only dependency

Cargo.lock

@@ -2910,10 +2910,11 @@ dependencies = [
 
 [[package]]
 name = "poll-promise"
-version = "0.2.0"
+version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fcf2a02372dfae23c9c01267fb296b8a3413bb4e45fbd589c3ac73c6dcfbb305"
+checksum = "5f6a58fecbf9da8965bcdb20ce4fd29788d1acee68ddbb64f0ba1b81bccdb7df"
 dependencies = [
+ "document-features",
  "static_assertions",
 ]
 
@@ -3856,9 +3857,9 @@ dependencies = [
 
 [[package]]
 name = "ttf-parser"
-version = "0.19.2"
+version = "0.19.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "49d64318d8311fc2668e48b63969f4343e0a85c4a109aa8460d6672e364b8bd1"
+checksum = "a464a4b34948a5f67fddd2b823c62d9d92e44be75058b99939eae6c5b6960b33"
 
 [[package]]
 name = "tts"