ref(issue-views): Fold navigate behavior into issueViews context

[MichaelSun48]

This PR refactors the issue views family of components by moving lots of the navigation logic into the IssueViews context created in this PR.

Many of the tab actions that were folded into the IssueViews context require changes to the query parameters, which is why it makes sense to combine these two actions in the reducer function. For example:

• Duplicating a tab requires the newly created tab to be selected (change viewId parameter)
• Discarding a tab's changes requires the query/sort to be reset to the original query/sort (change query/sort param