Import bookmarks functionality for grid bookmark widget

[cmdcolin]

I had a quick interest in getting a import bookmarks function implemented

This let's a user quickly import a BED formatted file. The name column 4 is stored in the "label" field

It also has a couple more add-ons

• replaces the NA default export with a . which is the standard not available data description for BED
• makes it so duplicates in bookmarks are allowed, as this may come from data files, and rather than filtering on import, it retains them (note that if this was not done, then strange errors would occur on editing fields)
• makes the hover style on links in the grid bookmark widget cursor:pointer

Some motivation to this includes my feeling that you can easily loose track of your session

During development especially, I cycle through tons of sessions and I imagine a user may also, and if we're not careful, we would loose our bookmarks (since bookmarks are currently tied to session...). So if we can at least re-import them, it seems useful

Just an idea I picked up and ran with :)

[codecov]

Codecov Report

Merging #2243 (6ff4aac) into main (60b4ef3) will decrease coverage by 0.04%.
The diff coverage is 58.76%.

@@            Coverage Diff             @@
##             main    #2243      +/-   ##
==========================================
- Coverage   62.88%   62.84%   -0.05%     
==========================================
  Files         493      494       +1     
  Lines       22907    22942      +35     
  Branches     5178     5191      +13     
==========================================
+ Hits        14405    14417      +12     
- Misses       8236     8258      +22     
- Partials      266      267       +1     

Impacted Files	Coverage Δ
.../GridBookmarkWidget/components/ImportBookmarks.tsx	32.43% <32.43%> (ø)
...GridBookmarkWidget/components/AssemblySelector.tsx	85.71% <50.00%> (-1.79%)	⬇️
...c/GridBookmarkWidget/components/ClearBookmarks.tsx	71.42% <60.00%> (-11.91%)	⬇️
...gins/grid-bookmark/src/GridBookmarkWidget/model.ts	72.41% <66.66%> (-4.06%)	⬇️
...c/GridBookmarkWidget/components/DeleteBookmark.tsx	85.71% <77.77%> (-14.29%)	⬇️
...ridBookmarkWidget/components/DownloadBookmarks.tsx	80.00% <80.00%> (-6.67%)	⬇️
...idBookmarkWidget/components/GridBookmarkWidget.tsx	90.24% <88.23%> (+6.52%)	⬆️
...gins/grid-bookmark/src/GridBookmarkWidget/utils.ts	61.22% <100.00%> (ø)
packages/core/util/io/rangeFetcher.ts	90.24% <0.00%> (-2.44%)	⬇️
packages/core/assemblyManager/assemblyManager.ts	67.10% <0.00%> (-1.32%)	⬇️
... and 2 more

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[elliothershberg]

Nice! I'll take a look at this soon and give it a spin locally

[elliothershberg]

Overall looks good! I added a few points about the import form, but other than that I think this is a good addition to bookmarks.

[cmdcolin]

thanks for the review @elliothershberg :) big 🥳 for the bookmark feature as a whole