[Data Explorer] Saved object integration

[ashwin-pc]

Description

This change has a few changes in one. The primary change is allowing data explorer to open, edit and save saved objects. The main chnages are:

1. Add the top nav links for Discover 2.0:
   • Create a new saved search
   • Save the search
   • Open saved searches
   • Share the search
   • Inspect a search
2. Fixes issue where navigating away from the app causes memory leaks
3. minor fixes with padding

Issues Resolved

• fixes [Data Explorer] Implement top nav and Querybar #4226
• fixes [Data Explorer] Implement Saved object viewer #4232
• fixes [Data Explorer] Research workflow to load the data from the OpenSearch using data plugin saved search #4396

Screenshot

Screen.Recording.2023-08-15.at.4.57.43.PM.mov

Testing the changes

• Pull the change
• Load sample data for flight logs
• Open any of the saved searches or create your own

Check List

• All tests pass
  • yarn test:jest
  • yarn test:jest_integration
  • yarn test:ftr
• New functionality includes testing.
• New functionality has been documented.
• Update CHANGELOG.md
• Commits are signed per the DCO using --signoff

[codecov]

Codecov Report

Merging #4745 (0fe7648) into feature/data-explorer (521f306) will decrease coverage by 0.21%.
Report is 4 commits behind head on feature/data-explorer.
The diff coverage is 57.58%.

@@                    Coverage Diff                    @@
##           feature/data-explorer    #4745      +/-   ##
=========================================================
- Coverage                  66.50%   66.30%   -0.21%     
=========================================================
  Files                       3289     3380      +91     
  Lines                      62821    64683    +1862     
  Branches                    9788    10308     +520     
=========================================================
+ Hits                       41782    42888    +1106     
- Misses                     18658    19260     +602     
- Partials                    2381     2535     +154     

Flag	Coverage Δ
Linux_1	34.82% <8.96%> (?)
Linux_2	55.04% <84.33%> (?)
Linux_3	43.89% <43.13%> (?)
Linux_4	35.10% <14.56%> (?)
Windows	?
Windows_1	34.83% <8.96%> (?)
Windows_2	55.01% <84.33%> (?)
Windows_3	43.89% <43.13%> (?)
Windows_4	35.10% <14.56%> (?)

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

Files Changed	Coverage Δ
packages/osd-babel-preset/node_preset.js	100.00% <ø> (ø)
...osd-opensearch-archiver/src/lib/docs/test_stubs.ts	68.75% <ø> (ø)
...ch-archiver/src/lib/indices/create_index_stream.ts	69.76% <ø> (ø)
...ch-archiver/src/lib/indices/delete_index_stream.ts	50.00% <ø> (ø)
...ver/src/lib/indices/opensearch_dashboards_index.ts	0.00% <0.00%> (ø)
packages/osd-ui-shared-deps/theme.ts	41.66% <0.00%> (ø)
src/core/server/legacy/legacy_service.ts	75.38% <ø> (ø)
src/core/server/plugins/plugin_context.ts	45.45% <ø> (ø)
src/core/server/rendering/views/template.tsx	100.00% <ø> (ø)
...server/saved_objects/saved_objects_service.mock.ts	100.00% <ø> (ø)
... and 70 more

... and 218 files with indirect coverage changes