feat: revamp BOS component Dashboard Nav, BOS component explorer, int…

…roduce launchpad prototype, and added 404 fallback. (#867)

added BOS component launchpad, and a general 404 fallback. 
revamped and integrated launchpad with new navigation with style reword
for better alignment towards future styles


https://www.loom.com/share/bc9ed95387e5451f94fac65eac2bb146?sid=a3763829-bc5c-4c67-af06-9433762570f5