Revert "chore: reorder config loading to load config, *then* fill in missing defaults (#185)"

This reverts commit 708cdd0.

Author: matthewpi

config/config.go

@@ -359,6 +359,12 @@ type Configuration struct {
 // This function does not modify the currently stored global configuration.
 func NewAtPath(path string) (*Configuration, error) {
 	var c Configuration
+	// Configures the default values for many of the configuration options present
+	// in the structs. Values set in the configuration file take priority over the
+	// default values.
+	if err := defaults.Set(&c); err != nil {
+		return nil, err
+	}
 	// Track the location where we created this configuration.
 	c.path = path
 	return &c, nil
@@ -570,13 +576,6 @@ func FromFile(path string) error {
 		return err
 	}
 
-	// Configures the default values for many of the configuration options present
-	// in the structs. Values set in the configuration file will not be overridden by the
-	// default values.
-	if err := defaults.Set(c); err != nil {
-		return err
-	}
-
 	c.Token = Token{
 		ID:    os.Getenv("WINGS_TOKEN_ID"),
 		Token: os.Getenv("WINGS_TOKEN"),