Removed waiting until to app is ready to apply themes in order to get rid of the flicker when the editor loads each time it is opened

https://github.com/adobe/brackets/issues/8377
JSdoc suggestions from TomMalbran

https://github.com/adobe/brackets/pull/8302
Merge branch 'master' into themes-8377
More adjustments to jsdocs
Merge pull request #8419 from MiguelCastillo/themes-8377

[Themes] Removed waiting until to app is ready to apply themes in order to get ri...