Use the right filename for log files so they're sorted in rageshakes (#3219)

* Use the right filename for log files so they're sorted in rageshakes

* Hide the suffix part so it's not changed by accident

libraries/matrix/api/src/main/kotlin/io/element/android/libraries/matrix/api/tracing/WriteToFilesConfiguration.kt

@@ -21,7 +21,9 @@ sealed interface WriteToFilesConfiguration {
     data class Enabled(
         val directory: String,
         val filenamePrefix: String,
-        val filenameSuffix: String?,
         val numberOfFiles: Int?,
-    ) : WriteToFilesConfiguration
+    ) : WriteToFilesConfiguration {
+        // DO NOT CHANGE: suffix *MUST* be "log" for the rageshake server to not rename the file to something generic
+        val filenameSuffix = "log"
+    }
 }