Rationalise/distinguish menus between our sites

[phillxnet]

On our main website we have:

Main website:

• [x] Move Open Collective to the far right: it underwrites our entire project and is on the far right for Web-UI and Forum headers. See: https://github.com/rockstor/rockstor-website/issues/82

Docs site:

• [x] Remove redundant 'Home' - further reducing the menu count and helping to distinguish it from the Web-site (main). Most folks are likely familiar with clicking on the top-left icon to return to the 'landing' page for the specific website.
• [x] Remove 'COMMUNITY' entry - maintenance issues and our main website is the source of truth on that front, plus see above point.
• [x] Remove 'DOWNLOADS' see last point. We don't have downloads on Web-UI, Forum, Appman etc. Plus see above two points.
• [x] Add "OPEN COLLECTIVE" on far right as per Website (post proposed changes here above), Web-UI, and forum menu.
• [x] Re follow-up comment in this issue: use "WEBSITE" instead of "MAIN WEBSITE".
• [x] Remove social icons: consider limiting social_icons (very far right in header) to Website only.

Forum site:

(discourse theme has limited horizontal space)

• [x] Replace "Home" with "Main Website""Website", see point for "Home" in Docs section above. There Home is Home of docs (redundant), here it is the Main Website.

Appman site:

Leave as-is: it is already bare-bones as it should be for a focus app. But we do have an anomalous "Home" entry - but this is important to return to landing page - and our top-left icon returns to main website. May want to re-visit re-label some how. But not major for now.

Most recent Web-UI:

Main focus of development: so represents current 'form'. And is application specific + Open Collective.

All sites have a relatively common theme but it is proposed that we distinguish between them more clearly. I.e. Appman is specific. Likely wise the forum also: so reduce stuff duplicated from Main Website. Out docs is a little too similar to the main website (menu options wise) - again reduce options to help distinguish it.

Also we should address the potential redundancy of the Docs having a 'Home' entry when

[phillxnet]

All Places where we use "Main Website" reference instead "Website" - it's enough. All pages are forms of Website but our forum is the Forum website, Main is redundant if it is the over-arching reference/link to them all.

[phillxnet]

Comparison of Docs cut-down:

And fully specialized:

Side channel consensus is we can further use the website only social icons to help distinguish that site from all the others. Ergo latter in above. Plus our docs are lighter as they don't need fontawesome then.

[phillxnet]

Forum now modified to read "Website" not "Home" on top bar:

[phillxnet]

Website issue now resolved: