* feat: add generic lnurl error response handler
this is used multiple times in extensions to safeguard `views_lnurl.py`
endpoint to not return a wrong lnurl error response.
you use it by just setting following on your lnurl router/view
```
withdraw_ext_lnurl = APIRouter(prefix="/api/v1/lnurl")
withdraw_ext_lnurl.route_class = LNURLErrorResponseHandler
```
* feat: add payment tab
* feat: add buttons
* feat: persist `pay to enable` changes
* fix: do not disable extension on upgrade
* fix: show releases tab first
* feat: extract `enableExtension` logic
* refactor: rename routes
* feat: show dialog for paying extension
* feat: create invoice to enable
* refactor: extract enable/disable extension logic
* feat: add extra info to UserExtensions
* feat: check payment for extension enable
* fix: parsing
* feat: admins must not pay
* fix: code checks
* fix: test
* refactor: extract extension activate/deactivate to the `api` side
* feat: add `get_user_extensions `
* feat: return explicit `requiresPayment`
* feat: add `isPaymentRequired` to extension list
* fix: `paid_to_enable` status
* fix: ui layout
* feat: show QR Code
* feat: wait for invoice to be paid
* test: removed deprecated test and dead code
* feat: add re-check button
* refactor: rename paths for endpoints
* feat: i18n
* feat: add `{"success": True}`
* test: fix listener
* fix: rebase errors
* chore: update bundle
* fix: return error status code for the HTML error pages
* fix: active extension loading from file system
* chore: temp commit
* fix: premature optimisation
* chore: make check
* refactor: remove extracted logic
* chore: code format
* fix: enable by default after install
* fix: use `discard` instead of `remove` for `set`
* chore: code format
* fix: better error code
* fix: check for stop function before invoking
* feat: check if the wallet belongs to the admin user
* refactor: return 402 Requires Payment
* chore: more typing
* chore: temp checkout different branch for tests
* fix: too much typing
* fix: remove try-except
* fix: typo
* fix: manual format
* fix: merge issue
* remove this line
---------
Co-authored-by: dni ⚡ <office@dnilabs.com>
refactor exceptionhandlers into `exception.py` also now always throw
payment error when pay_invoice and invoice errors when create_invoice.
return a status flag with the detailed error message. with a 520
response
