Convert electron-builder config file to TS (#1591)

knip.ts

@@ -1,7 +1,7 @@
 import { KnipConfig } from "knip";
 
 export default {
-    entry: ["src/electron-main.ts", "src/preload.ts", "electron-builder.js", ".eslintrc-*.js", "scripts/**", "hak/**"],
+    entry: ["src/electron-main.ts", "src/preload.ts", "electron-builder.ts", ".eslintrc-*.js", "scripts/**", "hak/**"],
     project: ["**/*.{js,ts}"],
     ignoreDependencies: [
         // Brought in via hak scripts
@@ -9,6 +9,7 @@ export default {
         "matrix-seshat",
         // Needed by `electron-builder`
         "electron-builder-squirrel-windows",
+        "@types/yargs",
         // Required for `action-validator`
         "@action-validator/*",
     ],