Refactor build configs and improve CI/CD checks

This commit makes the build process more robust, simplifies
configurations and reduce the risk of incomplete or erroneous
deployments.

- Centralize output directory definitions by introducing
  `dist-dirs.json`.
- Add `verify-build-artifacts` utility to ensure correct build outputs
  and `print-dist-dir` to determine distribution directory.
- Add steps in CI/CD pipeline to verify build artifacts.
- Migrate Electron Builder config from YAML to CJS for capability to
  read JSON.
- Fix `release-site.yaml` failing due to pointing to wrong distribution
  directory, change it to use `print-dist-dir`.
- Improve `check-desktop-runtime-errors` to verify build artifacts for
  more reliable builds. Ensure tests fail and succeed reliably.
- Update `.gitignore` and configure ESLint to use it to define and
  ignore build artifact directories from one place, remove
  `.eslintignore` that does not add anything after this change.
- Keep `"main"` field in `package.json` as `electron-vite` depends on it
  (alex8088/electron-vite#270).
- Improve documentation

scripts/print-dist-dir.js

@@ -0,0 +1,58 @@
+/**
+ * Description:
+ *   This script determines the absolute path of a distribution directory based on CLI arguments
+ *   and outputs its absolute path. It is designed to be run programmatically by other scripts.
+ *
+ * Usage:
+ *   node scripts/print-dist-dir.js [options]
+ *
+ * Options:
+ *   --electron-unbundled   Path for the unbundled Electron application
+ *   --electron-bundled     Path for the bundled Electron application
+ *   --web                  Path for the web application
+ */
+
+import { resolve } from 'path';
+import { readFile } from 'fs/promises';
+
+const DIST_DIRS_JSON_FILE_PATH = resolve(process.cwd(), 'dist-dirs.json'); // cannot statically import because ESLint does not support it https://github.com/eslint/eslint/discussions/15305
+const CLI_ARGUMENTS = process.argv.slice(2);
+
+async function main() {
+  const distDirs = await readDistDirsJsonFile(DIST_DIRS_JSON_FILE_PATH);
+  const relativeDistDir = determineRelativeDistDir(distDirs, CLI_ARGUMENTS);
+  const absoluteDistDir = resolve(process.cwd(), relativeDistDir);
+  console.log(absoluteDistDir);
+}
+
+function mapCliFlagsToDistDirs(distDirs) {
+  return {
+    '--electron-unbundled': distDirs.electronUnbundled,
+    '--electron-bundled': distDirs.electronBundled,
+    '--web': distDirs.web,
+  };
+}
+
+function determineRelativeDistDir(distDirsJsonObject, cliArguments) {
+  const cliFlagDistDirMap = mapCliFlagsToDistDirs(distDirsJsonObject);
+  const availableCliFlags = Object.keys(cliFlagDistDirMap);
+  const requestedCliFlags = cliArguments.filter((arg) => {
+    return availableCliFlags.includes(arg);
+  });
+  if (!requestedCliFlags.length) {
+    throw new Error(`No distribution directory was requested. Please use one of these flags: ${availableCliFlags.join(', ')}`);
+  }
+  if (requestedCliFlags.length > 1) {
+    throw new Error(`Multiple distribution directories were requested, but this script only supports one: ${requestedCliFlags.join(', ')}`);
+  }
+  const selectedCliFlag = requestedCliFlags[0];
+  return cliFlagDistDirMap[selectedCliFlag];
+}
+
+async function readDistDirsJsonFile(absoluteConfigJsonFilePath) {
+  const fileContentAsText = await readFile(absoluteConfigJsonFilePath, 'utf8');
+  const parsedJsonData = JSON.parse(fileContentAsText);
+  return parsedJsonData;
+}
+
+await main();