maybe fix dumb clangd lsp defaults?

nvim/lua/plugins/lsp.lua

@@ -140,6 +140,11 @@ return {
             },
           },
         },
+        clangd = {
+          capabilities = {
+            offsetEncoding = 'utf-8',
+          },
+        },
       }
 
       require('mason-lspconfig').setup {