Add docfy for addon components (#27188)

* move script to scripts folder

* add docfy to router and scripts

* add docfy to router and scripts

* fix jsdoc syntax

* add component markdown files to gitignore

* improve error handling for scripts

* tidy up remaining jsdoc syntax

* add sample jsdoc components

* add known issue info

* make not using multi-line components clearer

* make generating docs clearer

* update copy

* final how to docfy cleanup

* fix ts file @module syntax

* fix read more syntax

* make docfy typescript compatible

ui/lib/core/addon/components/text-file.js

@@ -14,17 +14,12 @@ import { buildWaiter } from '@ember/test-waiters';
  *  that changes the input into a textarea
  *
  * @example
- * <TextFile
- *  @uploadOnly={{true}}
- *  @helpText="help text"
- *  @onChange={{this.handleChange}}
- *  @label="PEM Bundle"
- * />
+ * <TextFile @uploadOnly={{true}} @helpText="help text" @onChange={{this.handleChange}} @label="PEM Bundle" />
  *
  * @param {function} onChange - Callback function to call when the value of the input changes, returns an object in the shape of { value: fileContents, filename: 'some-file.txt' }
  * @param {bool} [uploadOnly=false] - When true, renders a static file upload input and removes the option to toggle and input plain text
  * @param {string} [helpText] - Text underneath label.
- * @param {string} [label='File']  - Text to use as the label for the file input. If none, default of 'File' is rendered
+ * @param {string} [label=File]  - Text to use as the label for the file input. If none, default of 'File' is rendered
  */
 
 const waiter = buildWaiter('text-file');