Co-authored-by: biohzrddd <10577752+biohzrddd@users.noreply.github.com>

Closes #1286, closes #1283

Scrollbar fix by @aleetsaiya

There's no new code here, just a reorg. Had to change some import calls
in some files to make it all work properly.

Having just done a lot of work in the accounts directory I figured it
could do with some organization. I've broken out all the Header
functions into a different file in order to cut down on the size of the
account.js file.

I also moved the transactions files into a new directory since they are
used by other pages. Also makes them easier to find with this structure.

Moving some more components out of `common.tsx` into their own files.

There are no functional changes. This is a direct copy&paste into new
files.

This is direct copy & paste with no changes. Just moving things a bit to
reduce the size of the massive common.tsx file

As discussed in #1126 creating separate PRs.

The linter rule isn't actually part of this first PR and will likely be
in the final PR as otherwise it will just fail because all the issues
aren't resolved.

The code is 'ready' though so as soon as this is merged I will open next
one(s)

Another batch of components in `desktop-client` converted to TS

Introduces a **ResponsiveProvider** as the sole location that tracks
window size and makes that info available to the entire app. This can be
used for media queries and size-based component switching.
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Co-authored-by: Jed Fox <git@jedfox.com>