Add more default symptoms

Closes https://todo.sr.ht/~singpolyma/femmejournal/36
Narrow chart height

We're looking for small variations, not hyper/hypothermia.

Closes https://todo.sr.ht/~singpolyma/femmejournal/38
Do not fill in "human average" quite so heavily

Improves the speed with which the app adapts to a new user.

Closes https://todo.sr.ht/~singpolyma/femmejournal/39
Basal temperature must be elevated for 72 hours
Try adding svg for win32

See if that makes the icons show up :)
Fix direction of left vs late

Got turned around when switched to daysTo
Force topbar to white

This is the desired topbar foreground in both dark and light theme, so
just force it for now.

Closes https://todo.sr.ht/~singpolyma/femmejournal/33
Get firstIndex *after* normalizing
Update temperature chart when unit changes

Closes https://todo.sr.ht/~singpolyma/femmejournal/34
Use a property so it updates after data loads

Closes https://todo.sr.ht/~singpolyma/femmejournal/28
Parser is mostly using QDate internally
No entry for invalid date
Switch to custom Date class

Because passing QDate to QML is undefined behaviour.


Closes: https://todo.sr.ht/~singpolyma/femmejournal/32
Switch Android build to Qt 5.10.1

Closes https://todo.sr.ht/~singpolyma/femmejournal/29
Workaround for builds.sr.ht bug

mxe puts exe in release/
git will live on the website, so point there
Debian depend on all the QML modules in use
Switch from inkscape to a lighter dependency