fix: config fixes for Windows

- Update the default config file to use `more` instead of `less` as the
  default pager, in order to support Windows out-of-the-box. (#655, #665).

- Use `terminal` Chroma formatter (rather than `terminal16m`) in order
  to accommodate less capable terminal emulators like `cmd.exe` by
  default. Similarly, default to `colorize: false` in configs (changed
  from `true`) (#665).

- Comment out default `style` in order to avoid printing ANSI color
  codes into terminals without color support (#665)

- Attempt to intelligently choose a default editor, rather than rely on
  a hard-coded `vim` in the configs. This should make it easier to use
  `cheat` immediately without needing to specify configs. It should also
  improve `cheat`'s Windows compatibility. (#665)

internal/config/config_test.go

@@ -85,8 +85,8 @@ func TestEmptyEditor(t *testing.T) {
 
 	// initialize a config
 	conf, err := New(map[string]interface{}{}, mock.Path("conf/empty.yml"), false)
-	if err == nil {
-		t.Errorf("failed to return an error on empty editor")
+	if err != nil {
+		t.Errorf("failed to initialize test: %v", err)
 	}
 
 	// set editor, and assert that it is respected