Add link to privacy policy

(cherry picked from commit 207f9c26ae1e177aff0db8a7ea7a6e54bb2161a8)

app/src/main/java/eu/kanade/tachiyomi/ui/more/AboutController.kt

@@ -88,6 +88,13 @@ class AboutController : SettingsController(), NoAppBarElevationController {
                 router.pushController(LicensesController().withFadeTransaction())
             }
         }
+        preference {
+            key = "pref_about_privacy_policy"
+            titleRes = R.string.privacy_policy
+            onClick {
+                openInBrowser("https://tachiyomi.org/privacy")
+            }
+        }
 
         add(AboutLinksPreference(context))
     }

app/src/main/res/values/strings.xml

@@ -487,6 +487,7 @@
     <string name="whats_new">What\'s new</string>
     <string name="help_translate">Help translate</string>
     <string name="licenses">Open source licenses</string>
+    <string name="privacy_policy">Privacy policy</string>
     <string name="check_for_updates">Check for updates</string>
     <string name="updated_version">Updated to v%1$s</string>