Check write permissions for configurations, show storage path

[stefanseifert]

Fixes #25

[stefanseifert]

@kwin: can you test this PR?
it both adds a (i) button to show the actual persist path, and also renders the config details dialog readonly if the current user does not have write permission to this path.

[kwin]

Looks good in general, just a small visual glitch with the icon not horizontally aligned with the preceding text:

I could fix this by removing the css style line-height set for .coral3-Button--minimal:

[stefanseifert]

Looks good in general, just a small visual glitch with the icon not horizontally aligned with the preceding text:

that was in AEM 6.5 only - i've fixed this in fd84149

[sonarcloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
87.5% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud