[perf] create action presentations lazily

[pq]

Stops eagerly creating action presentations (allocating resources prematurely and possibly unnecessarily) in favor of the preferred registration in plugin metadata that will only get loaded as-needed.

From the inspection:

Reports any actions that are registered in the plugin.xml file and instantiate the com.intellij.openapi.actionSystem.Presentation object in their constructors.

Any of the constructors of AnAction with parameters instantiate the Presentation object. However, instantiating the Presentation object in constructor results in allocating resources, which may not be necessary. Instead of creating an instance of Presentation that stores text, description, or icon, it is more efficient to utilize no-argument constructors of
AnAction and other base classes and follow the convention for setting the text, description, and icon in plugin.xml. The IDE will load text, description, and icon only when the action is actually displayed in the UI.

The convention for setting the text, description, and icon is as follows:
Set the id attribute for the action in the plugin.xml file.
Optionally, set the icon attribute if an icon is needed.

Our actions:

The only risk is in ensuring that the templated menu text is still getting properly filled in, and I confirmed that:

---

• I’ve reviewed the contributor guide and applied the relevant portions to this PR.

Contribution guidelines:

• See our [contributor guide](https://github.com/dart-lang/sdk/blob/main/CONTRIBUTING.md for general expectations for PRs.
• Larger or significant changes should be discussed in an issue before creating a PR.
• Dart contributions to our repos should follow the Dart style guide and use dart format.
• Java and Kotlin contributions should strive to follow Java and Kotlin best practices (discussion).