zeta2: Parse imports via Tree-sitter queries + improve zeta retrieval-stats (#39735)

Release Notes:

- N/A

---------

Co-authored-by: Max <max@zed.dev>
Co-authored-by: Agus <agus@zed.dev>
Co-authored-by: Oleksiy <oleksiy@zed.dev>

crates/languages/src/javascript/config.toml

@@ -23,6 +23,7 @@ tab_size = 2
 scope_opt_in_language_servers = ["tailwindcss-language-server", "emmet-language-server"]
 prettier_parser_name = "babel"
 debuggers = ["JavaScript"]
+import_path_strip_regex = "(?:/index)?\\.[jt]s$"
 
 [jsx_tag_auto_close]
 open_tag_node_name = "jsx_opening_element"

crates/languages/src/javascript/imports.scm

@@ -0,0 +1,14 @@
+(import_statement
+    import_clause: (import_clause
+        [
+            (identifier) @name
+            (named_imports
+                (import_specifier
+                    name: (_) @name
+                    alias: (_)? @alias))
+        ])
+    source: (string (string_fragment) @source)) @import
+
+(import_statement
+    !import_clause
+    source: (string (string_fragment) @source @wildcard)) @import