Add version tag in footer

[lubej]

Issue

Closes #1118

Solution

Latest tag(version) should be displayed in the footer, linking to the matching tag in releases.

• git describe --tags --abbrev=0 gets the latest single tag in commit history - possible to add --exact-match, to show only tags on current commit, but will break test builds;
• env variable REACT_APP_BUILD_VERSION added for vx.x tag;

Caveats

git describe --tags --abbrev=0 will throw an error, if there are no tags added - which is probably what we want anyway.

[codecov]

Codecov Report

Merging #1192 (19e4650) into master (4041391) will increase coverage by 0.32%.
The diff coverage is 100.00%.

❗ Current head 19e4650 differs from pull request most recent head 3c530fd. Consider uploading reports for the commit 3c530fd to get more accurate results

@@            Coverage Diff             @@
##           master    #1192      +/-   ##
==========================================
+ Coverage   80.29%   80.61%   +0.32%     
==========================================
  Files         141      141              
  Lines        2654     2657       +3     
  Branches      652      654       +2     
==========================================
+ Hits         2131     2142      +11     
+ Misses        523      515       -8     

Flag	Coverage Δ
cypress	51.28% <100.00%> (+0.05%)	⬆️
jest	73.83% <100.00%> (+0.44%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
src/app/components/Footer/index.tsx	100.00% <100.00%> (ø)
src/app/state/transaction/saga.ts	68.79% <0.00%> (+0.70%)	⬆️
src/app/state/account/saga.ts	88.67% <0.00%> (+5.66%)	⬆️
src/app/state/transaction/index.ts	94.28% <0.00%> (+11.42%)	⬆️

[buberdds]

Let's merge two last commits into one something like "Open footer links in a new tab".

optional: in terms of guards we could either check tag format in UI or maybe just add comment in gh action next to fetch-depth that it's needed to render footer correctly.