* Repair most egregious mistakes
The deployed changes broke the pedagogy and curriculum built into the design of the onboarding modals, which had been reviewed and approved by various other contributors. While the changed layouts of the pages make some of the original decisions impossible to re-implement without substantial work, these changes should at least make the modals not outright terrible.
The empty confusing description of Mastodon was replaced with an actual basic explanation of federation. The language was modified to be friendly and conversational again. Grammatical errors were fixed. The explanations of local and federated timelines were re-ordered to be in the direct that the menus go, top to bottom, and the sentence was re-added which explains that they are what "public timelines" refers to (since this phrasing is used elsewhere in the UI) and suggests the user use them to discover who to follow. A figure of the profile picture that lives above the compose box was padded to page two to serve as a landmark for less technically literate users to easily find the compose box and understand that the next page is moving upwards, so that they can find the search bar.
Ideally, the elephant artwork should be either removed or replaced with something less depressing. Room should be made to point users at the notifications column's settings icon because "how do I turn off the notification noise" is one of the most asked questions of new users and those icons are not easily noticeable. This last part may be made obsolete if the settings UI is later re-worked.
* Change copy
This commit addresses copy change suggestions made in the PR discussion
* Add periods to ends of sentences missing periods
* Made "Home" "Federated" "Local" and "Notifications" lowercase
* Separate explanation of "connecting" and the word "instance" into two sentences, to make the sentence less dense.
<h1><FormattedMessageid='onboarding.page_one.welcome'defaultMessage='Welcome to Mastodon!'/></h1>
<p><FormattedMessageid='onboarding.page_one.federation'defaultMessage='Mastodon is a social network that belongs to everyone.'/></p>
<p><FormattedMessageid='onboarding.page_one.handle'defaultMessage='You are on {domain}, one of many independent Mastodon instances. Your full handle is {handle}'values={{domain,handle:<strong>{acct}@{domain}</strong>}}/></p>
<p><FormattedMessageid='onboarding.page_one.federation'defaultMessage='Mastodon is a network of independent servers joining up to make one larger social network. We call these servers: <em>Instances</em>'/></p>
<p><FormattedMessageid='onboarding.page_one.handle'defaultMessage='You are on {domain}, so your full handle is {handle}'values={{domain,handle:<strong>{acct}@{domain}</strong>}}/></p>
<p><FormattedMessageid='onboarding.page_five.public_timelines'defaultMessage='Federated timeline lists public posts from everyone who people on {domain} follow. Local timeline is the same, but limited to people on {domain}.'values={{domain}}/></p>
<p><FormattedMessageid='onboarding.page_five.public_timelines'defaultMessage='The local timeline shows public posts from everyone on {domain}. The federated timeline shows public posts from everyone who people on {domain} follow. These are the Public Timelines, a great way to discover new people.'values={{domain}}/></p>
<FormattedMessageid='onboarding.page_six.admin'defaultMessage="Your instance's admin is {admin}."values={{admin:<Permalinkhref={admin.get('url')}to={`/accounts/${admin.get('id')}`}>@{admin.get('acct')}</Permalink>}}/>
<br/>
<FormattedMessageid='onboarding.page_six.read_guidelines'defaultMessage='Please, do not forget to read the {guidelines}!'values={{guidelines:<ahref='/about/more'target='_blank'><FormattedMessageid='onboarding.page_six.guidelines'defaultMessage='community guidelines'/></a>}}/>
<p><FormattedMessageid='onboarding.page_six.github'defaultMessage='Mastodon is free open-source software. You can report bugs, request features, or contribute to the code on {github}.'values={{github:<ahref='https://github.com/tootsuite/mastodon'target='_blank'rel='noopener'>GitHub</a>}}/></p>
<p><FormattedMessageid='onboarding.page_six.apps_available'defaultMessage='There are {apps} available for iOS, Android and other platforms. And now... Bon Appetoot!'values={{apps:<ahref='https://github.com/tootsuite/documentation/blob/master/Using-Mastodon/Apps.md'target='_blank'rel='noopener'><FormattedMessageid='onboarding.page_six.various_app'defaultMessage='various mobile apps'/></a>}}/></p>
<p><FormattedMessageid='onboarding.page_six.apps_available'defaultMessage='There are {apps} available for iOS, Android and other platforms.'values={{apps:<ahref='https://github.com/tootsuite/documentation/blob/master/Using-Mastodon/Apps.md'target='_blank'rel='noopener'><FormattedMessageid='onboarding.page_six.various_app'defaultMessage='mobile apps'/></a>}}/></p>