Change responses to use classes instead of interfaces (#394)

* ability to mark an open document as unsaved

* unsaved detection now being triggered based on layer tree height

* Changed responses to use classes instead of interfaces

* - rust implementation of unsaved markers
- upgraded eslint

* updated eslint in package.json

* - Renamed GetOpenDocumentsList -> UpdateOpenDocumentsList
- is not -> was not

* changed hash to current identifier to better reflect its meaning

* resolve some merge conflicts

* removed console.log statement leftover from debuging

* - changed Response to jsMessage
- split files
- Array<> -> []

* -remove path from UpdateLayer

* - remove unused if statements

* - comment for reflect-metadata
- registerJsMessageHandler -> subscribeJsMessage
- readonly message properties
- fixed binding filename and comment
- toRgb -> toRgba

* - newOpacity -> transformer
- added comments

* MessageMaker -> messageMaker

frontend/vue.config.js

@@ -71,7 +71,7 @@ module.exports = {
 			.init(
 				(Plugin) =>
 					new Plugin({
-						allow: "(Apache-2.0 OR BSD-2-Clause OR BSD-3-Clause OR MIT)",
+						allow: "(Apache-2.0 OR BSD-2-Clause OR BSD-3-Clause OR MIT OR 0BSD)",
 						emitError: true,
 						outputFilename: "third-party-licenses.txt",
 						outputWriter: formatThirdPartyLicenses,
@@ -150,7 +150,7 @@ License information is required on production builds. Aborting.`);
 	// Augment the imported Rust license list with the provided JS license list
 	jsLicenses.dependencies.forEach((jsLicense) => {
 		const { name, version, author, repository, licenseName } = jsLicense;
-		const licenseText = trimBlankLines(jsLicense.licenseText);
+		const licenseText = trimBlankLines(jsLicense.licenseText ?? "");
 
 		// Remove the `git+` or `git://` prefix and `.git` suffix
 		const repo = repository ? repository.replace(/^.*(github.com\/.*?\/.*?)(?:.git)/, "https://$1") : repository;