[FEAT] Push notification integration into core (#1393)

* push notification integration into core

added missing component

fixed bell working on all pages
- made pubkey global template env var
- had to move `get_push_notification_pubkey` to `helpers.py` because of circular reference with `tasks.py`

formay

trying to fix mypy

added py-vapid to requirements

Trying to fix stub mypy issue

* removed key files

* webpush key pair is saved in db `webpush_settings`

* removed lnaddress extension changes

* support for multi user account subscriptions, subscriptions are stored user based

fixed syntax error

fixed syntax error

removed unused line

* fixed subscribed user storage with local storage, no get request required

* method is singular now

* cleanup unsubscribed or expired push subscriptions

fixed flake8 errors

fixed poetry errors

* updating to latest lnbits

formatting, rebase error

fix

* remove unused?

* revert

* relock

* remove

* do not create settings table use adminsettings

mypy

fix

* cleanup old code

* catch case when client tries to recreate existing webpush subscription e.g. on cleared local storage

* show notification bell on user related pages only

* use local storage with one key like array, some refactoring

* fixed crud import

* fixed too long line

* removed unused imports

* ruff

* make webpush editable

* fixed privkey encoding

* fix ruff

* fix migration

---------

Co-authored-by: schneimi <admin@schneimi.de>
Co-authored-by: schneimi <dev@schneimi.de>
Co-authored-by: dni ⚡ <office@dnilabs.com>

lnbits/settings.py

@@ -228,6 +228,11 @@ class FundingSourcesSettings(
     lnbits_backend_wallet_class: str = Field(default="VoidWallet")
 
 
+class WebPushSettings(LNbitsSettings):
+    lnbits_webpush_pubkey: str = Field(default=None)
+    lnbits_webpush_privkey: str = Field(default=None)
+
+
 class EditableSettings(
     UsersSettings,
     ExtensionsSettings,
@@ -237,6 +242,7 @@ class EditableSettings(
     FundingSourcesSettings,
     BoltzExtensionSettings,
     LightningSettings,
+    WebPushSettings,
 ):
     @validator(
         "lnbits_admin_users",