PLT-6471 Properly panic when translations can't be loaded (#6414)

* PLT-6471 Properly panic when translations can't be loaded

* Print usage messages when errors occur during CLI initialization

* Reverted behaviour of FindDir and added second return value to it

* Fixed merge conflict

cmd/platform/import.go

@@ -44,7 +44,9 @@ func init() {
 }
 
 func slackImportCmdF(cmd *cobra.Command, args []string) error {
-	initDBCommandContextCobra(cmd)
+	if err := initDBCommandContextCobra(cmd); err != nil {
+		return err
+	}
 
 	if len(args) != 2 {
 		return errors.New("Incorrect number of arguments.")
@@ -76,7 +78,9 @@ func slackImportCmdF(cmd *cobra.Command, args []string) error {
 }
 
 func bulkImportCmdF(cmd *cobra.Command, args []string) error {
-	initDBCommandContextCobra(cmd)
+	if err := initDBCommandContextCobra(cmd); err != nil {
+		return err
+	}
 
 	apply, err := cmd.Flags().GetBool("apply")
 	if err != nil {