Rename the AnnotoriousPlugin cleanup callback unmount -> destroy

[oleksandr-danylchenko]

Current State

Currently, the AnnotoriousPluginProps receives the plugin function argument that returns the { unmount: ... } object:

annotorious/packages/annotorious-react/src/AnnotoriousPlugin.tsx

Lines 5 to 11 in adc3f3b

	export interface AnnotoriousPluginProps <I extends Annotation, E extends unknown> {
	plugin: (anno: Annotator<I, E>, opts?: Object) => ({ unmount?: () => void }) | void;
	opts?: Object;
	}

Issue

Could we rename the unmount to destroy? Seems like it's a more popular name for the cleanup within the library and is used for most of the modules:

annotorious/packages/annotorious/src/Annotorious.ts

Lines 107 to 118 in adc3f3b

	const destroy = () => {
	// Destroy Svelte annotation layer
	annotationLayer.$destroy();
	// Unwrap the image
	container.parentNode!.insertBefore(img, container);
	container.parentNode!.removeChild(container);
	// Other cleanup actions
	keyboardCommands.destroy();
	undoStack.destroy();
	}