fix failed to start front-end development due to missing version.properties file (#18523)

frontend/src/metabase/lib/settings.ts

@@ -191,7 +191,7 @@ class Settings {
 
   docsUrl(page = "", anchor = "") {
     let { tag } = this.get("version", {});
-    const matches = tag.match(/v[01]\.(\d+)(?:\.\d+)?(-.*)?/);
+    const matches = tag && tag.match(/v[01]\.(\d+)(?:\.\d+)?(-.*)?/);
 
     if (matches) {
       if (

frontend/test/metabase/lib/settings.unit.spec.js

@@ -14,6 +14,7 @@ describe("MetabaseSettings.docsUrl", () => {
   // all of these should point to the same doc URL
   [
     ["v0.41.0", "v0.41"],
+    [undefined, "latest"],
     ["v0.41.1-SNAPSHOT", "latest"],
     ["v0.41.2-rc1", "v0.41"],
     ["v0.41.3-RC2", "v0.41"],