Merge latest staging changes to production (#417)

* #1341 "pin" edit tag row outside of tag list

* #1341 "pin" edit tag row outside of tag list (#410)

Co-authored-by: matej <matej.vavrek@m2ms.sk>

* - fixed problem with tags not visually updating on observations

* - implemented changes requested in #1326

* - implemented #1357

* Implements #1376, #1361, #1354 (#412)

* - first implementation of #1354

* - updated message for #1354

* - cleanup for #1354

* - implemented #1361
- improvements for #1354

* - implemented #1376
- also fixed bug in download structures dialog where only first download got added to the dropdown menu

* Implements purple part of #1370 (#413)

* - first implementation of #1354

* - updated message for #1354

* - cleanup for #1354

* - implemented #1361
- improvements for #1354

* - implemented #1376
- also fixed bug in download structures dialog where only first download got added to the dropdown menu

* - partial fix for purple release for #1370

* Partial implementation of #1357 (#415)

* - first implementation of #1354

* - updated message for #1354

* - cleanup for #1354

* - implemented #1361
- improvements for #1354

* - implemented #1376
- also fixed bug in download structures dialog where only first download got added to the dropdown menu

* - partial fix for purple release for #1370

* - using official backend version

* - DELETE button disabled for #1357

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Co-authored-by: matej <matej.vavrek@m2ms.sk>
Co-authored-by: boriskovar-m2ms <boris.kovar@m2ms.sk>
Co-authored-by: Warren Thompson <warren.thompson+1@diamond.ac.uk>