Add overlay + please wait spinner on form submit

Impove row highlighter on table listing.

This will help distinguish between the knowledgebase part which encompasses
FAQ's and canned responses, and the FAQ part which contains the articles
detailing frequently-asked-questions.

Add print options supports - staff can now print a ticket thread without internal notes + select paper size on the fly

changing ticket create/status bottons on client landing page, redoing navbar shadow with css, adding kb icons