Update docker compose files and keep user config safe

[walkerlee]

Short Description:

• use alpine python as pokegoweb image (smaller image size)
• add data volume for user config/database
• we can get config.json from web, so use different folder to mapping web/config volume

[mention-bot]

@walkerlee, thanks for your PR! By analyzing the annotation information on this pull request, we identified @solderzzc, @joergpatz and @lawliet89 to be potential reviewers

[solderzzc]

Please edit the PR to merge to dev branch.

[k4n30]

@walkerlee does this close #4730 ? If not, could they be merged into 1 PR? Also you need to merge into dev as per Solderzzc's comment (not master)

[solderzzc]

So, let's merge it? @k4n30 @BreezeRo ?