fixed bug where descriptionTextarea in unlock textareas wasn't trageting globablly. Function targets entire document now

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