fix: turn meta import into import in Init.Data.ToString (#10754)

This PR makes sure that we always properly import
`Init.Data.ToString.Name` when importing `Init`.

Author: TwoFX

src/Init/Data/ToString.lean

@@ -8,4 +8,4 @@ module
 prelude
 public import Init.Data.ToString.Basic
 public import Init.Data.ToString.Macro
-public meta import Init.Data.ToString.Name
+public import Init.Data.ToString.Name