Remove release channel from Zed URLs (#8863)

Also adds a new command `cli: Register Zed Scheme` that will cause URLs
to be opened in the current zed version, and we call this implicitly if
you install the CLI

Also add some status reporting to install cli

Fixes: #8857



Release Notes:

- Added success/error reporting to `cli: Install Cli`
([#8857](https://github.com/zed-industries/zed/issues/8857)).
- Removed `zed-{preview,nightly,dev}:` url schemes (used by channel
links)
- Added `cli: Register Zed Scheme` to control which zed handles the
`zed://` scheme (defaults to the most recently installed, or
the version that you last used `cli: Install Cli` with)

crates/release_channel/src/lib.rs

@@ -139,26 +139,6 @@ impl ReleaseChannel {
         }
     }
 
-    /// Returns the URL scheme for this [`ReleaseChannel`].
-    pub fn url_scheme(&self) -> &'static str {
-        match self {
-            ReleaseChannel::Dev => "zed-dev://",
-            ReleaseChannel::Nightly => "zed-nightly://",
-            ReleaseChannel::Preview => "zed-preview://",
-            ReleaseChannel::Stable => "zed://",
-        }
-    }
-
-    /// Returns the link prefix for this [`ReleaseChannel`].
-    pub fn link_prefix(&self) -> &'static str {
-        match self {
-            ReleaseChannel::Dev => "https://zed.dev/dev/",
-            ReleaseChannel::Nightly => "https://zed.dev/nightly/",
-            ReleaseChannel::Preview => "https://zed.dev/preview/",
-            ReleaseChannel::Stable => "https://zed.dev/",
-        }
-    }
-
     /// Returns the query parameter for this [`ReleaseChannel`].
     pub fn release_query_param(&self) -> Option<&'static str> {
         match self {
@@ -169,24 +149,3 @@ impl ReleaseChannel {
         }
     }
 }
-
-/// Parses the given link into a Zed link.
-///
-/// Returns a [`Some`] containing the unprefixed link if the link is a Zed link.
-/// Returns [`None`] otherwise.
-pub fn parse_zed_link(link: &str) -> Option<&str> {
-    for release in [
-        ReleaseChannel::Dev,
-        ReleaseChannel::Nightly,
-        ReleaseChannel::Preview,
-        ReleaseChannel::Stable,
-    ] {
-        if let Some(stripped) = link.strip_prefix(release.link_prefix()) {
-            return Some(stripped);
-        }
-        if let Some(stripped) = link.strip_prefix(release.url_scheme()) {
-            return Some(stripped);
-        }
-    }
-    None
-}