[ty] Rank unimported symbols from typing higher

This addresses a number of minor annoyances where users really want
imports from `typing` most of the time.

For example:
https://github.com/astral-sh/ty/issues/1274#issuecomment-3345884227

crates/ty_completion_eval/completion-evaluation-tasks.csv

@@ -19,7 +19,7 @@ import-keyword-completion,main.py,0,1
 internal-typeshed-hidden,main.py,0,2
 local-over-auto-import,main.py,0,1
 none-completion,main.py,0,1
-numpy-array,main.py,0,159
+numpy-array,main.py,0,160
 numpy-array,main.py,1,1
 object-attr-instance-methods,main.py,0,1
 object-attr-instance-methods,main.py,1,1
@@ -30,10 +30,10 @@ scope-prioritize-closer,main.py,0,2
 scope-simple-long-identifier,main.py,0,1
 tighter-over-looser-scope,main.py,0,3
 tstring-completions,main.py,0,1
-ty-extensions-lower-stdlib,main.py,0,9
-type-var-typing-over-ast,main.py,0,3
-type-var-typing-over-ast,main.py,1,253
-typing-gets-priority,main.py,0,31
-typing-gets-priority,main.py,1,3
-typing-gets-priority,main.py,2,3
-typing-gets-priority,main.py,3,96
+ty-extensions-lower-stdlib,main.py,0,1
+type-var-typing-over-ast,main.py,0,1
+type-var-typing-over-ast,main.py,1,14
+typing-gets-priority,main.py,0,1
+typing-gets-priority,main.py,1,1
+typing-gets-priority,main.py,2,1
+typing-gets-priority,main.py,3,3

crates/ty_ide/src/completion.rs

@@ -1033,6 +1033,9 @@ struct Relevance {
     /// completion evaluation framework should be more representative
     /// of real world conditions.
     keyword: Sort,
+    /// In some instances, a symbol is from a very commonly used module
+    /// that we want to boost over other symbols.
+    special_module: Sort,
     /// Sorts based on whether the symbol comes from the `builtins`
     /// module. i.e., Python's initial basis. We usually sort these
     /// lower to give priority to symbols in a tighter scope.
@@ -1064,6 +1067,16 @@ impl Relevance {
             } else {
                 Sort::Even
             },
+            special_module: c
+                .module_name
+                .and_then(|name| {
+                    if name.as_str() == "typing" {
+                        Some(Sort::Higher)
+                    } else {
+                        None
+                    }
+                })
+                .unwrap_or(Sort::Even),
             builtin: if c.builtin { Sort::Lower } else { Sort::Even },
             name_kind: NameKind::classify(&c.name),
             type_check_only: if c.is_type_check_only {