Shared/Logs: Add support to .server set loglevel command after 003d67708b9a279da3d37e5ef06eb32ceab53964

Update the lowest log level when using ".server set loglevel" command.

(cherry picked from commit 43f74fd8cfbab8f8fecf128e5d8d5d44ae767988)

src/server/shared/Logging/Log.cpp

@@ -324,6 +324,9 @@ bool Log::SetLogLevel(std::string const& name, const char* newLevelc, bool isLog
             return false;
 
         it->second.setLogLevel(newLevel);
+
+        if (newLevel != LOG_LEVEL_DISABLED && newLevel < lowestLogLevel)
+            lowestLogLevel = newLevel;
     }
     else
     {