Merge pull request #182 from RuntimeTools/release5.2.0 release version 5.2.0 with dark mode

Update package.json change level due to update in graphmetrics package

Go back to 4.0.0 No need to increment version as we had not yet released 4.0.0

Update graphmetrics version (#132) 

update submodule and update version number for next release (#121) 

bump level to 3.3.5 (#119) 

HTTPS data in graphs (#118) * New https data now in graphs * Update submodule

3.3.3 (#113) 

Re-send static data when the client confirms it's connected (#102) * Re-send static data when the client confirms it's connected to avoid timing issues. * Increment the version number

Update package.json npm publish failed on 3.3.0, need to bump version to 3.3.1 to allow us to publish again