refactor: settings store

[ErikBjare]

Continuing on #306

What works:

• All settings now live in the Vuex store
• Slightly better testing, including access to Vuex state in NewReleaseNotification test
• Updated versions of several packages

What doesn't work yet:

• Storing settings on server (todo later)
  • Should be pretty easy to fix now that settings are centrally managed

[codecov]

Codecov Report

Merging #327 (f59a277) into master (b27a951) will increase coverage by 1.82%.
The diff coverage is 34.69%.

@@            Coverage Diff             @@
##           master     #327      +/-   ##
==========================================
+ Coverage   15.91%   17.73%   +1.82%     
==========================================
  Files          24       25       +1     
  Lines        1194     1263      +69     
  Branches      134      165      +31     
==========================================
+ Hits          190      224      +34     
- Misses        959     1001      +42     
+ Partials       45       38       -7     

Impacted Files	Coverage Δ
src/main.js	0.00% <ø> (ø)
src/store/index.js	100.00% <ø> (ø)
src/store/modules/activity.ts	5.64% <0.00%> (-0.24%)	⬇️
src/util/tooltip.js	0.00% <ø> (ø)
src/visualizations/periodusage.js	0.00% <ø> (ø)
src/visualizations/summary.js	0.00% <ø> (ø)
src/visualizations/sunburst-clock.js	0.00% <ø> (ø)
src/visualizations/timeline-simple.js	0.00% <0.00%> (ø)
src/visualizations/timeline.js	0.00% <ø> (ø)
src/util/time.ts	26.19% <26.19%> (ø)
... and 13 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update b27a951...f59a277. Read the comment docs.

[ErikBjare]

Might be a few bugs hiding in here, but merging for now as it's such a big improvement.