Change "view logs" to go link session directly instead of the PR

[seehorne]

Is your feature request related to a problem? Please describe.
Currently, when the user chooses to view logs, it opens the relevant PR in Github mobile, where they can then navigate to the conversation heading and select to view session in order to see the logs. It would be better if the link took them directly to the session itself (or if there are multiple sessions, the conversation heading where they can pick from multiple view sessions)

Describe the solution you'd like

• Identify how many sessions are associated with a given PR
• Change the deeplink associated with session viewing to one that goes directly to the session if only one session
• Change the deeplink associated with session viewing to one that goes directly to the conversation heading if multiple sessions, so the user can choose which one they want to view.

If the first two steps are not doable, it would be acceptable, though not preferred, to just always open the most recent session. If you take this strategy, the resulting raised PR should be very clear that this is the case.

Additional context
Note that, since this is a frontend change, testing it would require building the app yourself and using the metro dev server (i.e. you would need a Mac and XCode)