Prompt to launch TensorBoard when active Python file or ipynb contains a tensorboard import

[joyceerhl]

For #14883

• Pull request represents a single change (i.e. not fixing disparate/unrelated things in a single PR).
• Title summarizes what is changing.
• Has a news entry file (remember to thank yourself!).
• Appropriate comments and documentation strings in the code.
• Has sufficient logging.
• Has telemetry for enhancements.
• Unit tests & system/integration tests are added/updated.
• Test plan is updated as appropriate.
• package-lock.json has been regenerated by running npm install (if dependencies have changed).
• The wiki is updated with any design decisions/details.

[joyceerhl]

Per @jmew if the user selects 'yes', we will disable the prompt for the current session only, and continue to show the prompt on the next session where the trigger conditions are met, until the user selects 'doNotAskAgain'.

[codecov-io]

Codecov Report

Merging #14884 (414d699) into main (43d3f8e) will increase coverage by 0%.
The diff coverage is 86%.

@@           Coverage Diff           @@
##            main   #14884    +/-   ##
=======================================
  Coverage     65%      65%            
=======================================
  Files        551      554     +3     
  Lines      25889    26091   +202     
  Branches    3672     3702    +30     
=======================================
+ Hits       16902    17071   +169     
- Misses      8294     8331    +37     
+ Partials     693      689     -4     

Impacted Files	Coverage Δ
src/client/telemetry/importTracker.ts	31% <75%> (+11%)	⬆️
src/client/tensorBoard/tensorBoardImportTracker.ts	88% <88%> (ø)
src/client/activation/node/analysisOptions.ts	55% <0%> (-16%)	⬇️
.../pythonEnvironments/common/externalDependencies.ts	73% <0%> (-5%)	⬇️
src/client/activation/jedi/languageServerProxy.ts	25% <0%> (-2%)	⬇️
src/client/activation/node/languageServerProxy.ts	25% <0%> (-2%)	⬇️
src/client/pythonEnvironments/legacyIOC.ts	35% <0%> (-1%)	⬇️
...client/common/application/debugSessionTelemetry.ts	20% <0%> (-1%)	⬇️
...t/activation/languageServer/languageServerProxy.ts	90% <0%> (-1%)	⬇️
...ent/pythonEnvironments/discovery/locators/index.ts	84% <0%> (-1%)	⬇️
... and 15 more