SponsorBlock: Add link to privacy policy

Using the SponsorBlock has a slight privacy implication which the user should be
able to inform themself on.

app/src/main/java/org/schabi/newpipe/settings/ContentSettingsFragment.java

@@ -140,6 +140,17 @@ public class ContentSettingsFragment extends BasePreferenceFragment {
             return true;
         });
 
+        Preference sponsorblockPrivacyPreference =
+                findPreference(getString(R.string.sponsorblock_privacy));
+        sponsorblockPrivacyPreference.setOnPreferenceClickListener((Preference p) -> {
+            Intent i = new Intent(Intent.ACTION_VIEW,
+                    Uri.parse(
+                            "https://gist.github.com/ajayyy/aa9f8ded2b573d4f73a3ffa0ef74f796"
+                                    + "#requests-sent-to-the-server-while-using-the-extension"));
+            startActivity(i);
+            return true;
+        });
+
         Preference sponsorblockStatusPreference =
                 findPreference(getString(R.string.sponsorblock_status));
         sponsorblockStatusPreference.setOnPreferenceClickListener((Preference p) -> {

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

@@ -226,6 +226,7 @@
     <string name="sponsorblock_enable" translatable="false">skip_sponsors</string>
     <string name="sponsorblock_notifications" translatable="false">sponsorblock_notifications</string>
     <string name="sponsorblock_status" translatable="false">sponsorblock_status</string>
+    <string name="sponsorblock_privacy" translatable="false">sponsorblock_privacy</string>
 
     <!-- FileName Downloads  -->
     <string name="settings_file_charset_key" translatable="false">file_rename_charset</string>

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

@@ -665,6 +665,8 @@
     <string name="sponsorblock_enable_summary">Use the SponsorBlock API to automatically skip sponsors in videos.</string>
     <string name="sponsorblock_notifications_title">Notify when sponsors are skipped</string>
     <string name="sponsorblock_notifications_summary">Send a notification to your device when a sponsor is automatically skipped.</string>
+    <string name="sponsorblock_privacy_title">View Privacy Policy</string>
+    <string name="sponsorblock_privacy_summary">View the privacy policy of the SponsorBlock service.</string>
     <string name="sponsorblock_status_title">View Online Status</string>
     <string name="sponsorblock_status_summary">View the online status of the SponsorBlock servers.</string>
 </resources>

app/src/main/res/xml/content_settings.xml

@@ -137,6 +137,12 @@
             android:title="@string/sponsorblock_notifications_title"
             app:iconSpaceReserved="false" />
 
+        <Preference
+            android:key="@string/sponsorblock_privacy"
+            android:summary="@string/sponsorblock_privacy_summary"
+            android:title="@string/sponsorblock_privacy_title"
+            app:iconSpaceReserved="false" />
+
         <Preference
             android:key="@string/sponsorblock_status"
             android:summary="@string/sponsorblock_status_summary"