Changelog change type sections are ordered "incorrectly"

[lobotmcj]

Description

The default value for change_type_order uses lower-case "feat", "perf", etc instead of "Feat", "Perf", and is therefore ignored in changelog output

Steps to reproduce

1. mkdir /tmp/cztest && cd /tmp/cztest
2. git init
3. touch foo && git add foo && git commit -m "feat: first commit"
4. touch foo2 && git add foo2 && git commit -m "perf: second commit"
   
5. cz ch --dry-run
   
6. echo -e "[tool.commitizen]\nchange_type_order = [\"Feat\", \"Perf\"]" > pyproject.toml
7. cz ch --dry-run
   

Current behavior

The default change_type_order is ineffective and pre #323 LIFO ordering is used in the changelog

Desired behavior

Changelog sections should be ordered according to https://github.com/commitizen-tools/commitizen/blob/master/commitizen/defaults.py#L43

Environment

• commitizen version: 2.17.12
• python version: 3.6.9
• operating system: Linux

[lobotmcj]

I'm not positive, but as far as I can tell, this only is in effect when using cz_conventional_commits and is caused by the change_type_map which maps "perf" to "Perf", etc here:

commitizen/commitizen/cz/conventional_commits/conventional_commits.py

Lines 35 to 40 in aa0debe

	change_type_map = {
	"feat": "Feat",
	"fix": "Fix",
	"refactor": "Refactor",
	"perf": "Perf",
	}

An alternate fix to the PR I submitted might be to just change/remove this change_type_map, but I have not tested this (nor do I know if this would somehow break conventional commits convention or be otherwise undesirable).

[Lee-W]

closed by #403