Sorted constants in alphabetically order

[sagorika1996]

Addressed to #622

[mystamps-bot]

	2 Errors
🚫	maven-checkstyle-plugin error in src/main/java/ru/mystamps/web/Url.java#L121: Line has trailing spaces
🚫	danger check: pull request contains merge commits! Please, rebase your branch to get rid of them: git rebase master master and git push --force-with-lease

	1 Warning
⚠️	danger check: branch master does not comply with our best practices. Branch name should use the following scheme: ghXXX_meaningful-name where XXX is an issue number. Next time, please, use this scheme :)

	1 Message
📖	maven-checkstyle-plugin reported about 1 error. Please, fix it. See also: https://github.com/php-coder/mystamps/wiki/checkstyle

Generated by 🚫 Danger

[coveralls]

Coverage remained the same at 75.727% when pulling 790f004 on sagorika1996:master into eb57501 on php-coder:master.

[php-coder]

First of all, thank you! I left a couple of comments but overall it looks good to me.

Also I see that you use your name as an author for the commit. Generally I advise to use a real name (but it's not required of course). So, consider updating the author value in the commit (git commit user.name "John Dow" && git commit --am --reset-author).

BTW how did you find this project?

[php-coder]

Could you also add a comment here?

[php-coder]

Could you also add a comment here and above?

[sagorika1996]

Thanks for the comments! This is my first time trying out GitHub, so I was searching for some trivial bug fixes to get started with and found this.

[php-coder]

See comments from a bot:

• trailing space should be removed
• there should be only single commit (not 3)

[php-coder]

@sagorika1996 Hi, do you have plans to fix my comments or you aren't interested in anymore?

[php-coder]

@sagorika1996 Hi, I don't want to reject your PR but I also can't merge it because it contains 4 commits (instead of 1) and there are couple trivial comments that should be addressed. Please, try to fix them and I'd be happy to accept your contribution!

[php-coder]

I'm sorry I can't accept this PR because my comments weren't fixed. If it was a single commit, I would probably merge it. But it has 4 commits for such a trivial change and also I'll need to fix minor issues by myself after that. So I feel that it doesn't worth it.