It seems like there is a vscode/webview bug that sometimes causes `postMessage` to hang indefinitely

Ensures updateRichState uses the correct current context

- Allows for multiple providers at once
 - Avoids the need to set "github-enterprise.uri" setting

- No functional changes, only file splitting, renaming, etc

Renames Authentication to be clearer about remote provider connections

Changes "search" to reveal in the side bar
Adds "Show Details" to commit/commit file quick pick

Adds visibility check for stashes view following

- Adds the Commit Graph
- Adds the Commit Details view

There has to be a better way to do this

- Adds Show Commit in Graph to the Commit Details view
Attempts to fix Graph data paging using `--boundary`

- Allows for more performant querying
Optimizes local git graph data to avoid extra lookups

Switches preview badge / feedback order

- adds feedback link
- updates focus state colors
- updates aria-activedescendant when viewing repos