Feature Request: Move all cinnamon and linux mint related files to XDG App Folder compliant locations.

[BeatLink]

 * Cinnamon version (cinnamon --version)
   - Please specify if you are using the daily builds PPA
     (https://launchpad.net/~linuxmint-daily-build-team/+archive/ubuntu/daily-builds).
 * Distribution - (Mint 17.2, Arch, Fedora 25, etc...)
 * Graphics hardware *and* driver used
 * 32 or 64 bit
 * Attach /home/<username>/.xsession-errors, or /var/log/syslog

Issue
To simplify the dot files in the user's home folder. the cinnamon and linux mint related data folders including ~/.cinnamon and ~/.linuxmint could be moved to XDG compliant folder locations such as ~/.config and ~/.local/share

Steps to reproduce

Expected behaviour

Other information

Configuration info, if applicable
If this bug report is related to an Applet, Desklet or Extension, please paste (or use a pastebin service) the offending extension's settings, if it has any. You can obtain this by opening its configuration, clicking the 'hamburger' button in the upper-right corner of the window, and selecting "Export to a file". Please be sure to review the contents and remove any personal data it may contain.

Please paste here

[github-actions]

This issue has been automatically marked as stale because it has not had
any activity in over 2 years.

If this issue is still relevant:

• Please test on a current version of this package.
• Add a comment with your findings

If no activity occurs in the next 30 days, this issue will be
automatically closed. Issues can be reopened if needed.