20125: Fix website URL anchors

As it turns out, it's not possible to reuse a YAML anchor.  At least in
Rust's `serde_yaml`, only the final definition is used.  All references,
even those that appear before the final definition, use the same
definition.  Thus, each application that refers to its own URL in its
match criteria needs a unique anchor.

20125/config.yml

@@ -32,56 +32,56 @@ applications:
   - instance: homeassistant.pyrocufflink.blue
 
 - name: Nextcloud
-  url: &url https://nextcloud.pyrocufflink.net/index.php
+  url: &url0 https://nextcloud.pyrocufflink.net/index.php
   icon:
     url: icons/nextcloud.png
   alerts:
-  - instance: *url
+  - instance: *url0
   - instance: cloud0.pyrocufflink.blue
 
 - name: Invoice Ninja
-  url: &url https://invoiceninja.pyrocufflink.net/
+  url: &url1 https://invoiceninja.pyrocufflink.net/
   icon:
     url: icons/invoiceninja.svg
     class: light-bg
   alerts:
-  - instance: *url
+  - instance: *url1
 
 - name: Jellyfin
-  url: &url https://jellyfin.pyrocufflink.net/
+  url: https://jellyfin.pyrocufflink.net/
   icon:
     url: icons/jellyfin.svg
   alerts:
   - job: jellyfin
 
 - name: Vaultwarden
-  url: &url https://bitwarden.pyrocufflink.net/
+  url: &url2 https://bitwarden.pyrocufflink.net/
   icon:
     url: icons/vaultwarden.svg
     class: light-bg
   alerts:
-  - instance: *url
+  - instance: *url2
   - alertgroup: Bitwarden
 
 - name: Paperless-ngx
-  url: &url https://paperless.pyrocufflink.blue/
+  url: &url3 https://paperless.pyrocufflink.blue/
   icon:
     url: icons/paperless-ngx.svg
   alerts:
-  - instance: *url
+  - instance: *url3
   - alertgroup: Paperless-ngx
   - job: paperless-ngx
 
 - name: Firefly III
-  url: &url https://firefly.pyrocufflink.blue/
+  url: &url4 https://firefly.pyrocufflink.blue/
   icon:
     url: icons/firefly-iii.svg
   alerts:
-  - instance: *url
+  - instance: *url4
 
 - name: Receipts
-  url: &url https://receipts.pyrocufflink.blue/
+  url: &url5 https://receipts.pyrocufflink.blue/
   icon:
     url: https://receipts.pyrocufflink.blue/static/icons/icon-512.png
   alerts:
-  - instance: *url
+  - instance: *url5