Don't generate names with visualized SPC and BS for the sxnui

You know, this doesn't really help right now, but it should fix #16577,
and maybe help with #16578 (but not the command palette part)

src/cascadia/TerminalSettingsModel/ActionMap.cpp

@@ -964,17 +964,27 @@ namespace winrt::Microsoft::Terminal::Settings::Model::implementation
             cmdImpl.copy_from(winrt::get_self<implementation::Command>(command));
 
             const auto inArgs{ command.ActionAndArgs().Args().try_as<Model::SendInputArgs>() };
-
+            const auto inputString{ (std::wstring_view)(inArgs ? inArgs.Input() : L"") };
             auto args = winrt::make_self<SendInputArgs>(
                 winrt::hstring{ fmt::format(FMT_COMPILE(L"{:\x7f^{}}{}"),
                                             L"",
                                             numBackspaces,
-                                            (std::wstring_view)(inArgs ? inArgs.Input() : L"")) });
+                                            inputString) });
             Model::ActionAndArgs actionAndArgs{ ShortcutAction::SendInput, *args };
 
             auto copy = cmdImpl->Copy();
             copy->ActionAndArgs(actionAndArgs);
 
+            if (!copy->HasName())
+            {
+                // Here, we want to manually generate a send input name, but
+                // without visualizing space and backspace
+                //
+                // TODO! Do we want to include `Send Input: ` in the generated
+                // string? I think it looks better without it tbh
+                copy->Name(winrt::hstring{ til::visualize_nonspace_control_codes(std::wstring{ inputString }) });
+            }
+
             return *copy;
         };
 

src/inc/til/string.h

@@ -24,6 +24,26 @@ namespace til // Terminal Implementation Library. Also: "Today I Learned"
         }
         return str;
     }
+    _TIL_INLINEPREFIX std::wstring visualize_nonspace_control_codes(std::wstring str) noexcept
+    {
+        for (auto& ch : str)
+        {
+            // NOT backspace!
+            if (ch < 0x20 && ch != 0x08)
+            {
+                ch += 0x2400;
+            }
+            // else if (ch == 0x20)
+            // {
+            //     ch = 0x2423; // replace space with ␣
+            // }
+            else if (ch == 0x7f)
+            {
+                ch = 0x2421; // replace del with ␡
+            }
+        }
+        return str;
+    }
 
     _TIL_INLINEPREFIX std::wstring visualize_control_codes(std::wstring_view str)
     {