Add JWT auth and .env support for admin login

internal/config/config.go

@@ -3,21 +3,28 @@ package config
 import (
 	"log"
 	"os"
+
+	"github.com/joho/godotenv"
 )
 
 type config struct {
 	AdminPassword string
-	Instance string
-	Tag string
+	Instance      string
+	Tag           string
 
-	JwtSecret string
-	JwtIssuer string
+	JwtSecret   string
+	JwtIssuer   string
 	JwtAudience string
 }
 
 var Config *config
 
 func Load() *config {
+	err := godotenv.Load()
+	if err != nil {
+		log.Fatal("Error loading .env file")
+	}
+
 	// Get mastodon instance
 	instance := os.Getenv("CAOM_INSTANCE")
 	if instance == "" {
@@ -51,15 +58,14 @@ func Load() *config {
 		audience = "CatsOfMastodonBotGo"
 	}
 
-
 	// Inititlize AppContext
 	var appContext = &config{
 		AdminPassword: adminPassword,
-		Instance:    instance,
-		Tag:         tag,
+		Instance:      instance,
+		Tag:           tag,
 
-		JwtSecret: secret,
-		JwtIssuer: issuer,
+		JwtSecret:   secret,
+		JwtIssuer:   issuer,
 		JwtAudience: audience,
 	}
 	return appContext