Update in-progress temporary cache in v1

[tnorling]

Today in both msal.js v1 and v2 the in-progress temporary cache entry is bound to the clientId which invoked the interaction. This means that if your page is running multiple instances of msal interactive requests will not be blocked by ongoing interactive requests by another instance. This is particularly problematic when using redirects as only 1 redirect can happen at a given time.

This PR, along with #4015, makes several changes to make the multi-instance interaction scenario more robust:

• Moves temporary cache to sessionStorage for parity with v2 (for now only the interaction in progress cache item is moved)
• Removes clientId from the interaction in progress cache key
• Replaces the interaction in progress cache value with the clientId that invoked interaction
• Preflight validation checks if any clientId has interaction in progress
• Redirect response handling checks if this clientId has interaction in progress

The cache key/value will be standard (msal.interaction.status) for both v1 and v2 to help with migration efforts.

[codecov-commenter]

Codecov Report

Merging #4014 (8f7dfa1) into dev (98533d9) will increase coverage by 0.04%.
The diff coverage is 84.61%.

Flag	Coverage Δ		*Carryforward flag
msal-angular	95.85% <ø> (ø)		Carriedforward from 98533d9
msal-browser	88.00% <ø> (ø)		Carriedforward from 98533d9
msal-common	85.02% <ø> (ø)		Carriedforward from 98533d9
msal-core	76.90% <84.61%> (+0.23%)	⬆️
msal-node	81.57% <ø> (ø)		Carriedforward from 98533d9
msal-react	94.11% <ø> (ø)		Carriedforward from 98533d9

*This pull request uses carry forward flags. Click here to find out more.

Impacted Files	Coverage Δ
lib/msal-core/src/UserAgentApplication.ts	69.44% <63.63%> (+0.16%)	⬆️
lib/msal-core/src/cache/AuthCache.ts	81.41% <100.00%> (+2.41%)	⬆️
lib/msal-core/src/utils/Constants.ts	90.69% <100.00%> (+0.22%)	⬆️

[sameerag]

lgtm

[ghost]

🎉msal@v1.4.13 has been released which incorporates this pull request.:tada:

Handy links:

• Release Notes
• Official NPM Release

[ghost]

🎉@azure/msal-browser@v2.17.0 has been released which incorporates this pull request.:tada:

Handy links:

• Release Notes
• Official NPM Release