MM-34787: Add colored output for non JSON console logs (#17388)

* MM-34787: Add colored output for non JSON console logs

https://mattermost.atlassian.net/browse/MM-34787

```release-note
A new field EnableColor is added to LogSettings and NotificationLogSettings.
Non-JSON console logs will now be colored if that field is set to true.
```

* Trigger CI

shared/mlog/log.go

@@ -73,6 +73,7 @@ type TargetInfo logr.TargetInfo
 type LoggerConfiguration struct {
 	EnableConsole bool
 	ConsoleJson   bool
+	EnableColor   bool
 	ConsoleLevel  string
 	EnableFile    bool
 	FileJson      bool
@@ -103,12 +104,15 @@ func getZapLevel(level string) zapcore.Level {
 	}
 }
 
-func makeEncoder(json bool) zapcore.Encoder {
+func makeEncoder(json, color bool) zapcore.Encoder {
 	encoderConfig := zap.NewProductionEncoderConfig()
 	if json {
 		return zapcore.NewJSONEncoder(encoderConfig)
 	}
 
+	if color {
+		encoderConfig.EncodeLevel = zapcore.CapitalColorLevelEncoder
+	}
 	encoderConfig.EncodeTime = zapcore.ISO8601TimeEncoder
 	return zapcore.NewConsoleEncoder(encoderConfig)
 }
@@ -124,7 +128,7 @@ func NewLogger(config *LoggerConfiguration) *Logger {
 
 	if config.EnableConsole {
 		writer := zapcore.Lock(os.Stderr)
-		core := zapcore.NewCore(makeEncoder(config.ConsoleJson), writer, logger.consoleLevel)
+		core := zapcore.NewCore(makeEncoder(config.ConsoleJson, config.EnableColor), writer, logger.consoleLevel)
 		cores = append(cores, core)
 	}
 
@@ -153,7 +157,7 @@ func NewLogger(config *LoggerConfiguration) *Logger {
 				Compress: true,
 			})
 
-			core := zapcore.NewCore(makeEncoder(config.FileJson), writer, logger.fileLevel)
+			core := zapcore.NewCore(makeEncoder(config.FileJson, false), writer, logger.fileLevel)
 			cores = append(cores, core)
 		}
 	}

shared/mlog/testing.go

@@ -37,7 +37,7 @@ func NewTestingLogger(tb testing.TB, writer io.Writer) *Logger {
 		mutex:        &sync.RWMutex{},
 	}
 
-	logWriterCore := zapcore.NewCore(makeEncoder(true), zapcore.Lock(logWriterSync), testingLogger.consoleLevel)
+	logWriterCore := zapcore.NewCore(makeEncoder(true, false), zapcore.Lock(logWriterSync), testingLogger.consoleLevel)
 
 	testingLogger.zap = zap.New(logWriterCore,
 		zap.AddCaller(),