update 2.1.4 release notes

Author: keith-turner

_posts/release/2025-04-08-accumulo-2.1.4.md

@@ -56,6 +56,10 @@ any prior 2.1 release.
   behavior when compactions are failing consecutively. This would likely occur when there
   is a misconfiguration. This change also includes new logging in the Compactor and
   Coordinator, and new metrics being emitted by the Compactor.
+* {% ghi 5729 %} Monitor now supports hosting behind a proxy.
+* {% ghi 5779 %} Admin serviceStatus command now report summaries per resource group.
+* {% ghi 5743 %} Added per table and per compaction erasure code configuration.
+* {% ghi 5720 %} Added ability to configure compactions differently per tablet and per output path.
 
 ### Configuration Improvements