[AB-287] adapting templates for changed behaviour in case users left the server for warnings display

fixing un mute template not requiring a message url

abstracto-modules/moderation/src/main/resources/en_US/command/mute/unmute_log_embed_en_US.ftl

@@ -26,10 +26,12 @@
                 "value": "<@safe_include "user_left_server"/> (${mute.mutingUser.userReference.id?c})"
          </#if>
     },
+    <#if messageUrl??>
     {
         "name": "<@safe_include "mute_log_mute_location_field_title"/>",
         "value": "[Link](${messageUrl})"
     },
+    </#if>
     {
         "name": "<@safe_include "unMute_log_muted_since_field_title"/>",
         "value": "${formatDate(mute.muteDate, "yyyy-MM-dd HH:mm:ss zz")}"

abstracto-modules/moderation/src/main/resources/en_US/command/warnings/warnings_warn_entry_en_US.ftl

@@ -1,7 +1,7 @@
 <#assign warnId>${warning.warning.warnId.id}</#assign>
 <#assign reason>${warning.warning.reason}</#assign>
-<#assign warnedUserText><#if warning.warnedUser.member??>${warning.warnedUser.member.asMention}(${warning.warnedUser.member.user.id})<#else>${warning.warnedUser.aUserInAServer.id?c}</#if></#assign>
-<#assign warningUserText><#if warning.warningUser.member??>${warning.warningUser.member.asMention}(${warning.warningUser.member.user.id})<#else>${warning.warningUser.aUserInAServer.id?c}</#if></#assign>
+<#assign warnedUserText><#if warning.warnedUser.member??>${warning.warnedUser.member.asMention}(${warning.warnedUser.member.user.id})<#else>${warning.warnedUser.userId?c}</#if></#assign>
+<#assign warningUserText><#if warning.warningUser.member??>${warning.warningUser.member.asMention}(${warning.warningUser.member.user.id})<#else>${warning.warningUser.userId?c}</#if></#assign>
 <#assign warnDate>${formatDate(warning.warning.warnDate, "yyyy-MM-dd HH:mm:ss zz")}</#assign>
 
 <#include "warnings_warn_entry_text">