added function build_iventory_block

Refactored and built build_section_entry_block and added Security section. Modified css and did some styling, created subtitle-textarea class in css.

Added customer block and began quest block, updated width of block-container from 350px to 350px

Added employee block with same structure as owner block, worked flawlessly.

Added owner loop to add owner/s title, and loop through building owner blocks

WIP: block_builder.py mid building of owner html functions

Finished store properties table block, adjusted title textarea size

Finished store properties block, updated textresizing into function initializeTextareaResizing and it runs after initial load, drop, drop to trash, and reset.

Feature complete to import html and build blocks, with drag and drop, trash, reset.