Use axios in web UI; remove jQuery

[UnniKohonen]

This PR replaces the jQuery ajax calls in the web UI with methods from the Axios library.

[codecov]

Codecov Report

Base: 99.55% // Head: 99.55% // No change to project coverage 👍

Coverage data is based on head (1a42edc) compared to base (26a405c).
Patch has no changes to coverable lines.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #646   +/-   ##
=======================================
  Coverage   99.55%   99.55%           
=======================================
  Files          87       87           
  Lines        6006     6006           
=======================================
  Hits         5979     5979           
  Misses         27       27           

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[osma]

Now that the Bootstrap 5 upgrade has been merged (#648), I suggest merging current master into this branch (or rebasing on master if you like) so you get the new Bootstrap, which doesn't depend on jQuery. Then it should be possible to remove jQuery entirely in this PR.

[sonarcloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
0.0% Duplication

[osma]

Looks good and works perfectly! Thanks a lot