fix(web-common): add check for possible unsafe json parse

[maryliag]

localStorage data can be tampered with by other scripts on the same origin. Malformed data crashes the call.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 95.76%. Comparing base (36ce569) to head (226bf37).
⚠️ Report is 3 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #6589   +/-   ##
=======================================
  Coverage   95.75%   95.76%           
=======================================
  Files         375      375           
  Lines       12725    12727    +2     
  Branches     3013     3013           
=======================================
+ Hits        12185    12188    +3     
+ Misses        540      539    -1     

Files with missing lines	Coverage Δ
...ackages/web-common/src/LocalStorageSessionStore.ts	93.75% <100.00%> (+8.03%)	⬆️

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[david-luna]

@maryliag thakns for catching that unwanted scenario. Please remove the it.only so the full test suite runs and it's good to go :)

[maryliag]

@david-luna ooops (now you know how I'm running the new tests hehe)
only removed