update templates for no npmName

Author: ckoegel

modules/openapi-generator/src/main/resources/typescript-axios/api_doc.mustache

@@ -26,7 +26,7 @@ import {
     {{classname}},
     Configuration{{#allParams}}{{#isModel}},
     {{{dataType}}}{{/isModel}}{{/allParams}}
-} from '{{{npmName}}}';
+} from '{{#npmName}}{{.}}{{/npmName}}{{^npmName}}./api{{/npmName}}';
 
 const configuration = new Configuration();
 const apiInstance = new {{classname}}(configuration);

modules/openapi-generator/src/main/resources/typescript-axios/model_doc.mustache

@@ -14,7 +14,7 @@ Name | Type | Description | Notes
 ## Example
 
 ```typescript
-import { {{classname}} } from '{{npmName}}';
+import { {{classname}} } from '{{#npmName}}{{.}}{{/npmName}}{{^npmName}}./api{{/npmName}}';
 
 const instance: {{classname}} = {
 {{#vars}}