Preparation for CRAN release (#82)

* chore: update NEWS.md

* chore: update maintainer info

* chore: add cran-comments.md

---------

Co-authored-by: Jakub Sobolewski <jakub.sobolewski@appsilon.com>

.Rbuildignore

@@ -15,3 +15,4 @@
 
 ^js$
 _\.new\.png$
+^cran-comments\.md$

DESCRIPTION

@@ -3,8 +3,8 @@ Title: Tools for Using React in Shiny
 Version: 0.4.0
 Authors@R:
   c(
-    person("Kamil", "Żyła", role = c("aut", "cre"), email = "opensource+kamil@appsilon.com"),
-    person("Jakub", "Sobolewski", role = "aut", email = "jakub.sobolewski@appsilon.com"),
+    person("Jakub", "Sobolewski", role = c("aut", "cre"), email = "opensource+jakub.sobolewski@appsilon.com"),
+    person("Kamil", "Żyła", role = "aut", email = "kamil@appsilon.com"),
     person("Marek", "Rogala", role = "aut", email = "marek@appsilon.com"),
     person("Appsilon Sp. z o.o.", role = "cph", email = "opensource@appsilon.com")
   )

NEWS.md

@@ -1,3 +1,9 @@
+# shiny.react 0.4.0
+
+- Upgrade React to 18.3.1:
+  - Replace deprecated React API. React 18 deprecates (React 19 removes) `ReactDOM.render` and `ReactDOM.unmountComponentAtNode`. `ReactDOM.createRoot` is used in place of those functions according to the [React 19 migration guide](https://react.dev/blog/2024/04/25/react-19-upgrade-guide#removed-deprecated-react-dom-apis).
+  - Changed rendering mechanism of React components. This change is motivated by the fact that it's impossible to call `ReactDOM.createRoot` on a container more than one time while `ReactDOM.render` allowed that. A `data-react-id` attribute is used to find and render React roots in place iterating over all nodes with `.react-data` class.
+
 # shiny.react 0.3.0
 
 1. Render React asynchronously and only once Shiny is fully initialized:

cran-comments.md

@@ -0,0 +1,5 @@
+## Author comment
+
+Submission of this version of the package breaks shiny.fluent and shiny.blueprint packages which depend on shiny.react due to the React upgrade.
+
+The submission of shiny.react 0.4.0 will be followed by a submissions of shiny.fluent and shiny.blueprint, which will address compatibility issues.