Allow Renaming of Custom 'Open in.

Allow Renaming of Custom 'Open in...' Apps

The 'Open in...' dropdown lets me choose to add apps to the list. The ones that were auto-configured have friendly display names, but the ones I add myself only use the application's executable name. For example, "sublime_merge". I'd like to edit that configuration to apply a display name of "Sublime Merge".

---
| Field | Value |
| --- | --- |
| App version | 1.0.25 |
| OS | Windows 10.0.26200 |
| Theme | GitHub |
| Path | /chat |
| Tenure | Week 3 |

Start by locating the “Open in...” dropdown and the configuration used for manually added applications. Trace how auto-configured display names differ from executable names, then make the custom app name editable and verify that a name such as “Sublime Merge” is shown instead of “sublime_merge”.

Written by the indexing model from the issue text.