Fix Git permalinks not being URL-escaped (#39895)

Closes #39875

Release Notes:

- Fixed "open/copy permalink to line" paths not being URL-escaped

Co-authored-by: Cole Miller <cole@zed.dev>

Cargo.lock

@@ -6775,6 +6775,7 @@ dependencies = [
  "futures 0.3.31",
  "git2",
  "gpui",
+ "itertools 0.14.0",
  "log",
  "parking_lot",
  "pretty_assertions",
@@ -6791,6 +6792,7 @@ dependencies = [
  "time",
  "unindent",
  "url",
+ "urlencoding",
  "uuid",
  "workspace-hack",
  "zed-collections",