docs: update documentation to reflect recent changes/additions (#1730) [skip ci]

* docs: update documentation to reflect recent changes/additions

* docs: add list of third-party integrations

* docs: add v3 warning

* docs: fix Docker for Windows link text

* docs: fix Telegram 'Send Silently' setting description

* docs: note that application URL is required for password reset/generation

* docs: add additional details on webhook template variables

docs/using-overseerr/notifications/lunasea.md

@@ -0,0 +1,17 @@
+# LunaSea
+
+## Configuration
+
+### Webhook URL
+
+Copy either a device- or user-based webhook URL from the LunaSea app into this field.
+
+### Profile Name (optional)
+
+If not using the `default` profile in the LunaSea app, specify the name of the profile here.
+
+Note that the entered profile name **_must_** match the name in LunaSea exactly (including any capitalization, punctuation, and/or whitespace).
+
+{% hint style="info" %}
+Please refer to the [LunaSea documentation](https://docs.lunasea.app/lunasea/notifications/overseerr) for more details on configuring these notifications.
+{% endhint %}