Display LN describtion

[Sander3003]

Is your feature request related to a problem? Please describe.
As a user of OpenSCD I want to show the LN describtion in the IED browser
So I can understand the LN better

Describe the solution you'd like
An edit button on the LN's in the IED browser:

And an dialog to show and edit the describtion.

Requirements
Show and edit LN description fields

Additional information
desc is part of the SCL XSD's

Test Files
If possible provide a file that can be used to test the feature and explain what is the outcome of the test with the test file

[DavoodSooran]

@Sander3003 Sure I will work on it.

[DavoodSooran]

see the link below:

#1465

[JakobVogelsang]

Hi you two. I would like to comment on this:

1. I am seeing two-story descriptions and find it very irritating. If the story description is not sufficient we can edit it and when it is hard to adopt I would open a new one and point from this one that it is handled in the new issue. For the reviewer, it is crucial to have a straight forward reference to review against.
2. The wizard that is see is for the element LNode as well as the table with the attributes. The element shown in the SCL is the element LN and I would add LN0 as well just as they are close code wise. Now it makes sense to add the description field in the wizard of all three of the element, but I would then split those up.

[Sander3003]

Agree @JakobVogelsang it is confunsing to create an new issues if the one is around the same topic.

[DavoodSooran]

@Sander3003 Jakob's comment is related to the scenario I added beneath this story. Using Jakob's feedback, I crafted a new narrative addressing the concerns raised in the comment.

[Sander3003]

This story will replace this issue: #1465