build(deps): bump bitflags from 1.3.2 to 2.0.2 (#6387)

* build(deps): bump bitflags from 1.3.2 to 2.0.2

Bumps [bitflags](https://github.com/bitflags/bitflags) from 1.3.2 to 2.0.2.
- [Release notes](https://github.com/bitflags/bitflags/releases)
- [Changelog](https://github.com/bitflags/bitflags/blob/main/CHANGELOG.md)
- [Commits](https://github.com/bitflags/bitflags/compare/1.3.2...2.0.2)

---
updated-dependencies:
- dependency-name: bitflags
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

* deps: Resolve bitflags 2.0 breaking changes

Bitflags 2.0 release made some breaking changes requiring some small
changes to the Helix codebase.

Almost all of the necessary changes are to manually `#[derive(..)]`
trait implementations which are no longer automatically derived for
all bitflags. All of these were previously automatically derived:

    #[derive(PartialEq, Eq, PartialOrd, Ord, Hash, Debug, Clone, Copy]

I have derived the minimum traits for each bitflag type.

The other change was to the `.bits` field. This is now a `.bits()`
method so the usage of this has been updated in the `Borders` type.

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Michael Davis <mcarsondavis@gmail.com>

helix-view/Cargo.toml

@@ -14,7 +14,7 @@ default = []
 term = ["crossterm"]
 
 [dependencies]
-bitflags = "1.3"
+bitflags = "2.0"
 anyhow = "1"
 helix-core = { version = "0.6", path = "../helix-core" }
 helix-loader = { version = "0.6", path = "../helix-loader" }