Handles the edge case where images in the Install steps can obscure the text below them at certain window dimensions.
In most cases, it's not possible to replicate this behavior due to minimum dimension settings in `chromium.js`. However, some window managers (such as i3) can ignore those settings, producing this bug.
This fix introduces a flexible, responsive layout to the Install steps, with the goal of keeping the action buttons in a consistent position while adapting the rest of the content to the remaining available space. The result is a clean, usable screen at any window size.
In the rare instance that a window's dimensions are less than that of the minimums set in `chromium.js`, scrollbars will appear to keep the smallest acceptable layout intact.
Potential side effects:
- Each `.step` element contains an`.inner` flexbox wrapper, which arranges its children in a column. The layout works best when each `flex-item` is an element that wraps the content inside of it. I think I accounted for all the possibilities on the Install screen, but any future `.step` items might want to keep that pattern in mind.
Resolves#1059
FREEBIE
* Make everything bigger and bolder to account for inverse (light on
dark) text.
* Give links better hover/focus state for the sake of tab navigation.
// FREEBIE
* Refactor options.js into a view
* Break up install flow into a series of screens
* Remove bootstrap
* Make installer window static size, mostly to facilitate positioning
// FREEBIE
When first intalling, users will no longer be presented with the option
to register as a standalone client.
For developer convenience, the standalone form can still be found at
chrome-extension://.../register.html
Closes#159
