feat: Landing Page And Other Internal Pages

Created by: Tirokk

Pullrequest

Landing page and other internal pages.

Issues

• fixes #4595 (closed)
• fixes #2917 (closed)

Todo

• lets have internal pages more configurable
• create component to handle common code of all internal pages
• bug: add missing internal donation page
• correct bugginess use of links.ORGANIZATION on LoginForm.vue, RegistrationSlider.vue, webapp/maintenance/source/pages/index.vue, and password-reset.vue
• check for same kind of bugginess uses of other links.XXX as well
• make a login button possible on internal pages
  • show menu on hover?
  • write tests in webapp/components/LoginButton/LoginButton.spec.js
• write some tests for the redirect? leftover of https://github.com/Ocelot-Social-Community/Ocelot-Social/pull/4555#discussion_r673831986
• in test toBeTruthy() instead of toBe(true) leftover of https://github.com/Ocelot-Social-Community/Ocelot-Social/pull/4555#discussion_r673833339
• give all the internal pages a redirect in case it’s external
• remove leading <br> on each internal page default. shouldn't that be done with css? https://github.com/Ocelot-Social-Community/Ocelot-Social/pull/4555#pullrequestreview-710883277
• what we gonna do with the maintenance page? (is only solved by a quick fix now, but see experimental PR #4619 and I moved it to #4116 )
  • what’s about the file webapp/components/utils/InternalPages.js? We need it now!
  • have only external or even internal links.ORGANIZATION page on the logo?
  • put the footer there as well?

Think of:

• remove sender.fm experimental content
• search for notice Wolle to clean up

Manual Live tests:

• test logo link on maintenance page?