Add missing polish translations (#4018)

Resources/translations/SonataAdminBundle.pl.xliff

@@ -344,7 +344,7 @@
             </trans-unit>
             <trans-unit id="list_results_count_prefix">
                 <source>list_results_count_prefix</source>
-                <target>list_results_count_prefix</target>
+                <target>Co najmniej</target>
             </trans-unit>
             <trans-unit id="list_results_count">
                 <source>list_results_count</source>
@@ -452,7 +452,7 @@
             </trans-unit>
             <trans-unit id="stats_view_more">
                 <source>stats_view_more</source>
-                <target>stats_view_more</target>
+                <target>Zobacz więcej</target>
             </trans-unit>
             <trans-unit id="title_select_subclass">
                 <source>title_select_subclass</source>