Export Import Save + Export CSV

[BilelJegham]

closes #105
closes #54

Add:

• download geojson in CustomMap Modal
• GeoSave format to export/import your history
• PWA can open GeoSave and GeoJSON with the File Handling API (chrome https://web.dev/file-handling/)

[codecov]

Codecov Report

Merging #115 (df1c0b0) into master (669e71e) will increase coverage by 1.89%.
The diff coverage is 61.97%.

@@            Coverage Diff             @@
##           master     #115      +/-   ##
==========================================
+ Coverage   25.35%   27.24%   +1.89%     
==========================================
  Files          29       31       +2     
  Lines         927      958      +31     
  Branches      165      170       +5     
==========================================
+ Hits          235      261      +26     
- Misses        688      693       +5     
  Partials        4        4              

Impacted Files	Coverage Δ
...omponents/history/gameResult/HistoryMapClassic.vue	0.00% <ø> (ø)
...omponents/history/gameResult/HistoryMapCountry.vue	8.00% <ø> (ø)
src/components/page/Footer.vue	0.00% <ø> (ø)
src/components/home/DialogCustomMap.vue	29.72% <11.11%> (-3.61%)	⬇️
src/components/history/HistoryTable.vue	64.81% <64.81%> (ø)
src/components/page/ContentPage.vue	100.00% <100.00%> (ø)
src/components/page/Header.vue	100.00% <100.00%> (ø)
src/pages/HistoryPage.vue	100.00% <100.00%> (ø)
src/pages/Home.vue	100.00% <100.00%> (ø)
... and 2 more

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