Prefer the same order of entries inside outline and project panels, project search multi buffer (#13044)

Release Notes:

- N/A

Cargo.lock

@@ -7171,7 +7171,6 @@ dependencies = [
  "serde",
  "serde_json",
  "settings",
- "unicase",
  "util",
  "workspace",
  "worktree",
@@ -7863,6 +7862,7 @@ dependencies = [
  "tempfile",
  "terminal",
  "text",
+ "unicase",
  "unindent",
  "util",
  "which 6.0.0",
@@ -7893,7 +7893,6 @@ dependencies = [
  "settings",
  "theme",
  "ui",
- "unicase",
  "util",
  "workspace",
  "worktree",