Script details: Edit name & description, copy invocable URL, & delete script

We want to allow users to edit their script details like name and description, access the script invocable URL, and delete their script.

ACs:

- Add an edit button next to the script title
- When a user clicks the edit button a modal opens up with an editable Name field, editable description, invocable URL with a copy to clipboard button, and delete script option.
- Name should be auto-selected on modal load so a user can start typing to rename the script without having to select the title.

Design:
https://www.figma.com/file/0qAntPk5LVangAHguWT74X/Query-Experience-Project?node-id=2164%3A97303

Outstanding design:
- Delete confirmation and toast notification
- Eventually it would be good to show where the script is being used when they are trying to delete it, but this would require additional backend support