Add disclaimer about Androidacy using ads and trackers.

See https://gitlab.com/fdroid/fdroiddata/-/merge_requests/10830#note_898354128

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

@@ -93,4 +93,5 @@
     <string name="enable_blur_pref">Activer l\’effet de flou</string>
     <string name="repo_enabled">Dépôt activé</string>
     <string name="repo_disabled">Dépôt désactivé</string>
+    <string name="androidacy_repo_info">Le dépôt Androidacy utilise des publicités et des pisteurs.</string>
 </resources>

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

@@ -93,4 +93,5 @@
     <string name="enable_blur_pref">Enable blur</string>
     <string name="repo_enabled">Repo enabled</string>
     <string name="repo_disabled">Repo disabled</string>
-</resources>
+    <string name="androidacy_repo_info">Androidacy repo uses ads and trackers.</string>
+</resources>

app/src/main/res/xml/repo_preferences.xml

@@ -48,6 +48,12 @@
             app:key="pref_androidacy_repo_submit"
             app:icon="@drawable/ic_baseline_upload_file_24"
             app:title="@string/submit_modules"
-            app:singleLineTitle="false"	/>
+            app:singleLineTitle="false" />
+        <Preference
+            app:key="pref_androidacy_ads_disclaimer"
+            app:icon="@drawable/ic_baseline_info_24"
+            app:enabled="false"
+            app:summary="@string/androidacy_repo_info"
+            app:singleLineTitle="false" />
     </PreferenceCategory>
 </PreferenceScreen>