telescope: wrap setup code in do...end

TODO.md

@@ -0,0 +1 @@
+- Test if the config is actually being evaluated - this is easy to check by purposefully causing an error

plugins/telescope/default.nix

@@ -50,6 +50,7 @@ in
       '';
 
       extraConfigLua = ''
+        do
           local __telescopeExtensions = ${helpers.toLuaObject cfg.enabledExtensions}
 
           require('telescope').setup{
@@ -59,6 +60,7 @@ in
           for i, extension in ipairs(__telescopeExtensions) do
             require('telescope').load_extension(extension)
           end
+        end
       '';
     };
   };