BugFix Issue commons-app#2991 (commons-app#2992)

Path Segmens need not be preceeded by "/"

Author: ashishkumar468

app/src/main/java/fr/free/nrw/commons/mwapi/OkHttpJsonApiClient.java

@@ -86,7 +86,7 @@ public OkHttpJsonApiClient(OkHttpClient okHttpClient,
     public Single<Integer> getUploadCount(String userName) {
         HttpUrl.Builder urlBuilder = wikiMediaToolforgeUrl.newBuilder();
         urlBuilder
-                .addPathSegments("/uploadsbyuser.py")
+                .addPathSegments("uploadsbyuser.py")
                 .addQueryParameter("user", userName);
 
         if (ConfigUtils.isBetaFlavour()) {
@@ -112,7 +112,7 @@ public Single<Integer> getUploadCount(String userName) {
     public Single<Integer> getWikidataEdits(String userName) {
         HttpUrl.Builder urlBuilder = wikiMediaToolforgeUrl.newBuilder();
         urlBuilder
-                .addPathSegments("/wikidataedits.py")
+                .addPathSegments("wikidataedits.py")
                 .addQueryParameter("user", userName);
 
         if (ConfigUtils.isBetaFlavour()) {