feat(command-palette): Add global search for unsynced files

[gatzjames]

Highlights:

• Use the new v1/user/files api to fetch remote files
• Update the command palette to merge remote/local files
• When selecting a remote file if we already have the TeamProject we pull that file, otherwise redirect to the TeamProject to sync team projects

Conisderations:

• Project, TeamProject, BackendProject, remoteId, backendProjectId, teamProjectId, project and so on is really hard to reason about. We need to standarize on a common language in the app and api for those things.
• Test with remote files that exist on projects the user hasn't loaded yet

Closes INS-3666