feat: active session management for stale / removed sessions

[kantorcodes]

Description:

There have been reports that sessions no longer exist despite a Signer still being available. This PR introduces a more active role in the library to automatically detect this kind of a mismatch.

• It will remove a Signer when its session is no longer valid. A session might become invalid either by expiring, by a user disconnecting from the wallet, or some sort of a desync from IndexedDB.
• Adds better typing for Log classes, and disables logs during test:watch to make it easier to debug tests.

Related issue(s):

Fixes #

Notes for reviewer:

Checklist

• [ ] Documented (Code comments, README, etc.)
• [ ] Tested (unit, integration, etc.)

[github-actions[bot]]

Coverage report

St.:grey_question:	Category	Percentage	Covered / Total
🟡	Statements	78.33% (+1.23% 🔼)	506/646
🟡	Branches	65.19% (+2.11% 🔼)	88/135
🟡	Functions	77.33% (+0.31% 🔼)	116/150
🟡	Lines	79.67% (+1.41% 🔼)	478/600

Show new covered files 🐣

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| File | Statements | Branches | Functions | Lines | | :-: | :- | :- | :- | :- | :- | | 🟢 |

`...` / SessionNotFoundError.ts

| 100% | 100% | 100% | 100% |

Test suite run success

146 tests passing in 11 suites.

Report generated by 🧪jest coverage report action from 87359c34775e5039c0448958f28d8927698a214e