Move all HTML/CSS/JS related to preview and syntax highlighting in the docs into a shared folder

This will also be the place where the .60 language definition for
highlight.js can go.

.github/workflows/ci.yaml

@@ -305,7 +305,7 @@ jobs:
       # allow deprecated warning because we are using nightly and some things might be deprecated in nightly
       # for which the stable alternative is not yet available
       RUSTFLAGS: -D warnings -W deprecated
-      RUSTDOCFLAGS: --html-in-header=/home/runner/work/sixtyfps/sixtyfps/api/sixtyfps-rs/sixtyfps-docs-preview.html --html-in-header=/home/runner/work/sixtyfps/sixtyfps/api/sixtyfps-rs/sixtyfps-docs-highlight.html -D warnings -W deprecated
+      RUSTDOCFLAGS: --html-in-header=/home/runner/work/sixtyfps/sixtyfps/docs/html/sixtyfps-docs-preview.html --html-in-header=/home/runner/work/sixtyfps/sixtyfps/docs/html/sixtyfps-docs-highlight-rust.html -D warnings -W deprecated
       SIXTYFPS_NO_QT: 1
       CARGO_INCREMENTAL: false
       MDBOOK_VERSION: 0.4.10

api/sixtyfps-cpp/docs/_templates/layout.html

@@ -1,6 +1,6 @@
 {% extends "!layout.html" %}
 {% block scripts %}
 {{ super() }}
-{% include "../../../sixtyfps-rs/sixtyfps-docs-preview.html" %}
+{% include "../../../../docs/html/sixtyfps-docs-preview.html" %}
-{% include "../sixtyfps-docs-highlight.html" %}
+{% include "../../../../docs/html/sixtyfps-docs-highlight-cpp.html" %}
 {% endblock %}

api/sixtyfps-rs/Cargo.toml

@@ -31,4 +31,4 @@ pin-weak = "1"
 rustc_version = "0.4"
 
 [package.metadata.docs.rs]
-rustdoc-args = [ "--html-in-header", "sixtyfps-docs-preview.html", "--html-in-header", "sixtyfps-docs-highlight.html" ]
+rustdoc-args = [ "--html-in-header", "docs/html/sixtyfps-docs-preview.html", "--html-in-header", "docs/html/sixtyfps-docs-highlight-rust.html" ]

docs/building.md

@@ -125,7 +125,7 @@ html to the documentation with the `--html-in-header` rustdoc flag.
 Here is how to build the documentation to include preview of the .60 files.
 
 ```sh
-RUSTDOCFLAGS="--html-in-header=$PWD/api/sixtyfps-rs/sixtyfps-docs-preview.html --html-in-header=$PWD/api/sixtyfps-rs/sixtyfps-docs-highlight.html" cargo +nightly doc --no-deps
+RUSTDOCFLAGS="--html-in-header=$PWD/docs/html/sixtyfps-docs-preview.html --html-in-header=$PWD/docs/html/sixtyfps-docs-highlight-rust.html" cargo +nightly doc --no-deps
 ```
 
 ### C++ doc

docs/html/sixtyfps-docs-highlight-rust.html

@@ -1,6 +1,6 @@
 <!--
     This file is used to add syntax highlighting of the `.60` snippets in the generated rustdoc documentation.
-    It can be injected via the `--html-in-header sixtyfps-docs-highlight.html` option of rustdoc.
+    It can be injected via the `--html-in-header sixtyfps-docs-highlight-rust.html` option of rustdoc.
 -->
 <link rel="stylesheet" href="https://sixtyfps.io/highlight-default.css">
 <script src="https://sixtyfps.io/highlight.pack.js"></script>