Settings refactor (#38367)

Co-Authored-By: Ben K <ben@zed.dev>
Co-Authored-By: Anthony <anthony@zed.dev>
Co-Authored-By: Mikayla <mikayla@zed.dev>

Release Notes:

- settings: Major internal changes to settings. The primary user-facing
effect is that some settings which did not make sense in project
settings files are no-longer read from there. (For example the inline
blame settings)

---------

Co-authored-by: Ben Kunkle <ben@zed.dev>
Co-authored-by: Mikayla Maki <mikayla.c.maki@gmail.com>
Co-authored-by: Anthony <anthony@zed.dev>

crates/editor/src/code_completion_tests.rs

@@ -1,9 +1,10 @@
-use crate::{code_context_menus::CompletionsMenu, editor_settings::SnippetSortOrder};
+use crate::code_context_menus::CompletionsMenu;
 use fuzzy::{StringMatch, StringMatchCandidate};
 use gpui::TestAppContext;
 use language::CodeLabel;
 use lsp::{CompletionItem, CompletionItemKind, LanguageServerId};
 use project::{Completion, CompletionSource};
+use settings::SnippetSortOrder;
 use std::sync::Arc;
 use std::sync::atomic::AtomicBool;
 use text::Anchor;