made changes in the file structure and main page:

1. put the select-page contents in the main folder because select-page
didn't stand for selecting a module anymore.
2. re-linked the website after the changes in paths of some files
3. gave a new look to the Module of the week and Missions div's in the
module page.
4. deleted some files that are unnecessary: the content files for an LDD
module that's not going to be implemented in LDD + an old SQL file +the
backup for the main page (github has history of all commits & files so
it's findable if we need it)