Add basic deep links for Solution apps

[joshdover]

#83380 added support for Kibana apps to provide deep links to be populated in the navigation search bar results.

Thus far, not many teams have been able to prioritize doing the work to add these links, these apps still remain:

• Fleet - [Fleet][GS] Add Fleet deep links to navigational search #86171
• Observability - [GS] Add Observability deep links to navigational search #86165
• Dev Tools - [GS] Add Dev Tools deep links to navigational search #86172
• Stack Monitoring - [GS] Add Stack Monitoring deep links to navigational search #86168

The reason we opted not to do this for teams directly is because in order to keep the code DRY we would need to move some code around in order to share the strings for route paths with the React code and the deep link code.

We could compromise on this and duplicate these strings + add a comment that indicates where to update this code when either location changes. This would be a bit more 'hacky' but would help us get more consistency in the search experience sooner. This should be prioritized for later in 7.13 so that if other teams do have bandwidth to do it the right way, that happens first.

[elasticmachine]

Pinging @elastic/kibana-core (Team:Core)

[joshdover]

Since the low-hanging fruit here has been done, I'm going to close this out and leave the other individual issues open to track the harder-to-change apps.