Fix Compat Issues with Cosmos 5.0.5

[mteckes]

Looks like COSMOS past 5.0.1 removed portal-vue and vuejs-dialog. Since these are gone, planetviewer cannot load because it is looking for those dependencies.

1. Remove portal-vue
2. Remove vuejs-dialog

[jmthomas]

Thank you for this issue. We haven't yet pulled these projects over to OpenC3 but we'll look for this PR when we do.