add css for image-textarea and generate-image-button to set display:none when in page-container, updated block_builder.py and template_update.html to include image-textarea

prepping for merge to main. Added storeUI.css with @media and some cleanup in store_helper

Modified padding on .page width from 1.9cm to 1.2 cm, set classTable.frame width to 95%, set columnWrapper width to 100%, in storeUI.html moved buttons out of brewRenderer and to top layer of page-container

merging with script and storeUI.css