Fix google hijacking (#69)

* For google searches, double-check that we’re on the `/search` path.

Google tracks outgoing external links through urls like https://www.google.com/url?q=https://nytimes.com

By checking that the url path starts with `/search` if we detect a google url, we can prevent other paths from being hijacked by the extension.

Tested the following urls:
https://www.google.com/url?q=https://nytimes.com/ => does not redirect
https://www.google.com/search?q=https://nytimes.com/ => does redirect

Verified that using Bing and DuckDuckGo continues to work as before.

Fixes: https://kagifeedback.org/d/3120-safari-extension-is-starting-to-hijack-all-google-links-again

* Bump version

safari/Universal/MainConfig.xcconfig

@@ -1,3 +1,3 @@
-MARKETING_VERSION = 2.2.0
-CURRENT_PROJECT_VERSION = 21 // this needs to be increased with each version change as well (not set to 1 when version is updated)
+MARKETING_VERSION = 2.2.1
+CURRENT_PROJECT_VERSION = 22 // this needs to be increased with each version change as well (not set to 1 when version is updated)
 PRODUCT_NAME = Kagi for Safari

safari/Universal/Shared (Extension)/Resources/background.js

@@ -315,7 +315,9 @@ function captureQuery(a) {
     var b = a.host;
     b.startsWith(www) && (b = b.slice(www.length));
     b.endsWith(yahoo) && (b = yahoo);
-    if (b in builtInEngines && (a = (new URLSearchParams(a.search)).get(builtInEngines[b]))) return a;
+    const path = a.pathname;
+    var shouldBlockGoogleNonSearch = (b in googleUrls && !(path.startsWith("/search")));
+    if (b in builtInEngines && !(shouldBlockGoogleNonSearch) && (a = (new URLSearchParams(a.search)).get(builtInEngines[b]))) return a;
 }
 
 function rewriteQueryURL(a, b) {