[clangd] Enable AKA type printing by default

[kadircet]

Summary

This has been tested on a large set of c++ developers for a long while,
without any crashes or complaints.

clang-tools-extra/clangd/Config.h

struct {
     /// Whether code completion includes results that are not visible in current
     /// scopes.
     bool AllScopes = true;
   } Completion;
 
   /// Configures hover feature.
   struct {
     /// Whether hover show a.k.a type.
-    bool ShowAKA = false;
+    bool ShowAKA = true;
   } Hover;
 
   struct {
     /// If false, inlay hints are completely disabled.
     bool Enabled = true;
 
     // Whether specific categories of hints are enabled.
     bool Parameters = true;