Pretty sure that all textareas lock during drag events, no more dropping html into textareas or content editable areas

added update_template.html which is same architecture as storeUI.html page-container, so testing will be more accurate. Updated extractBlocks function to target block-items

Removed some white spaces, added functions to lock textares during drop events, and unlock at end of drop events, added check for 'description-textarea' while handling drop

Resolved blocks not sorting correctly after trash event by always reordering by block-id which is static

merging with script and storeUI.css