The flag list pane shows the flags currently rendered on screen. This issue captures:
- Rendering the list of flags that are currently visible in the editor pane
- Allowing the user to "select" a flag by clicking on it
- Showing the total number of flagged phrases
This issue does not include the flag detail view; so when a flag is selected that state should be reflected in the app, but it doesn't need to translate to a rendering of the detail view yet.
This also does not have to render the flag toggle yet (which is already captured in issue #47)

The flag list pane shows the flags currently rendered on screen. This issue captures:
This issue does not include the flag detail view; so when a flag is selected that state should be reflected in the app, but it doesn't need to translate to a rendering of the detail view yet.
This also does not have to render the flag toggle yet (which is already captured in issue #47)