feat: update to angular 14 with some minor changes

[ddubrava]

1. Update to Angular 14
2. Style changes: remove underscore for private variables, set up simple-import-sort plugin
3. Replace subscription.add() with takeUntil(destroy$)
4. Refactor usage of some RxJS operators
5. Improve folder structure

[codecov-commenter]

Codecov Report

Merging #173 (f0bf502) into master (ba36fd3) will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master     #173   +/-   ##
=======================================
  Coverage   99.51%   99.52%           
=======================================
  Files          13       14    +1     
  Lines         616      625    +9     
  Branches       89       83    -6     
=======================================
+ Hits          613      622    +9     
  Misses          3        3           

Impacted Files	Coverage Δ
...-yandex-maps/src/lib/angular-yandex-maps.module.ts	100.00% <100.00%> (ø)
.../components/ya-clusterer/ya-clusterer.component.ts	97.50% <100.00%> (-0.04%)	⬇️
.../lib/components/ya-control/ya-control.directive.ts	100.00% <100.00%> (ø)
.../components/ya-geoobject/ya-geoobject.directive.ts	100.00% <100.00%> (ø)
...maps/src/lib/components/ya-map/ya-map.component.ts	100.00% <100.00%> (ø)
...omponents/ya-multiroute/ya-multiroute.directive.ts	100.00% <100.00%> (ø)
...s/ya-object-manager/ya-object-manager.directive.ts	100.00% <100.00%> (ø)
...ib/components/ya-panorama/ya-panorama.directive.ts	100.00% <100.00%> (ø)
.../components/ya-placemark/ya-placemark.directive.ts	100.00% <100.00%> (ø)
...yandex-maps/src/lib/event-manager/event-manager.ts	97.50% <100.00%> (ø)
... and 3 more

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