Use typescript@5.4 without "use strict;" directives, instead of lates…

…t typescript@5.5

The "use strict;" appears to cause some issues with LocalDoc in certain cases. Pinning to TS 5.4 now to get things fixed, will investigate an isolated repro and long-term fix later.

package.json

@@ -45,7 +45,7 @@
     "typedoc": "^0.26.5",
     "typedoc-plugin-mdn-links": "^3.1.28",
     "typedoc-plugin-missing-exports": "^3.0.0",
-    "typescript": "~5.5"
+    "typescript": "~5.4.5"
   },
   "bugs": {
     "url": "https://github.com/derbyjs/racer/issues"

tsconfig.json

@@ -1,8 +1,10 @@
 {
   "compilerOptions": {
     "allowJs": true,
+    "ignoreDeprecations": "5.0",
     "lib":[],
     "module": "CommonJS",
+    "noImplicitUseStrict": true,
     "outDir": "lib",
     "target": "ES5",
     "sourceMap": false,