Add comments to identify current risk from the Components deprecation, i.e. flutter#6953

Author: jwren

flutter-idea/src/io/flutter/font/ProjectOpenListener.java

@@ -11,6 +11,15 @@
 import org.jetbrains.annotations.NotNull;
 
 public class ProjectOpenListener implements ProjectManagerListener {
+  //See https://plugins.jetbrains.com/docs/intellij/plugin-components.html#comintellijpoststartupactivity
+  // for notice and documentation on the deprecation intentions of
+  // Components from JetBrains.
+  //
+  // Migration forward has different directions before and after
+  // 2023.1, if we can, it would be prudent to wait until we are
+  // only supporting this major platform as a minimum version.
+  //
+  // https://github.com/flutter/flutter-intellij/issues/6953
   @Override
   public void projectOpened(@NotNull Project project) {
     // Ensure this isn't part of testing

flutter-idea/src/io/flutter/project/FlutterProjectStructureDetector.java

@@ -89,6 +89,15 @@ private void scheduleAndroidModuleAddition(@NotNull String projectName, @NotNull
     scheduleDisconnectIfCancelled(connection);
     //noinspection ConstantConditions
     connection[0].subscribe(ProjectManager.TOPIC, new ProjectManagerListener() {
+      //See https://plugins.jetbrains.com/docs/intellij/plugin-components.html#comintellijpoststartupactivity
+      // for notice and documentation on the deprecation intentions of
+      // Components from JetBrains.
+      //
+      // Migration forward has different directions before and after
+      // 2023.1, if we can, it would be prudent to wait until we are
+      // only supporting this major platform as a minimum version.
+      //
+      // https://github.com/flutter/flutter-intellij/issues/6953
       @Override
       public void projectOpened(@NotNull Project project) {
         if (connection[0] != null) {

flutter-idea/src/io/flutter/sdk/FlutterSdkManager.java

@@ -51,6 +51,15 @@ private FlutterSdkManager(@NotNull Project project) {
     });
 
     ProjectManager.getInstance().addProjectManagerListener(myProject, new ProjectManagerListener() {
+      //See https://plugins.jetbrains.com/docs/intellij/plugin-components.html#comintellijpoststartupactivity
+      // for notice and documentation on the deprecation intentions of
+      // Components from JetBrains.
+      //
+      // Migration forward has different directions before and after
+      // 2023.1, if we can, it would be prudent to wait until we are
+      // only supporting this major platform as a minimum version.
+      //
+      // https://github.com/flutter/flutter-intellij/issues/6953
       @Override
       public void projectOpened(@NotNull Project project) {
         checkForFlutterSdkChange();