chore: update testing for dropdown component

bugfix: revert MNI152 name

nb: name is needed for backwards compatibility.
TODO implement tests for backwards compat

bugfix: aot build exclude material theme from using raw-loader

feat: preloading main.bundle.js

fix: bundled material theme indigo-pink.css

test query KG spatial search backend

Add external links, plus correct some bugs

chore: updated jquery origin

chore: remove allaggregated.json

bufix: layerbrowsr will now search all ngIds

updated splash screen

Remove isMobile and darktheme dependencies plus mobile menu style

correct nativeElement is not found error

corrections of indo buttons and download references

Dev download zip2