assorted: add config 2fa pointer for indexers that have a 2fa brother

src/Jackett.Common/Definitions/empornium.yml

@@ -66,6 +66,10 @@ caps:
     search: [q]
 
 settings:
+  - name: info_2fa
+    type: info
+    label: "About 2FA"
+    default: "If you want to enable 2FA then use the Empornium2FA indexer instead."
   - name: username
     type: text
     label: Username

src/Jackett.Common/Definitions/happyfappy.yml

@@ -28,6 +28,10 @@ caps:
     search: [q]
 
 settings:
+  - name: info_2fa
+    type: info
+    label: "About 2FA"
+    default: "If you want to enable 2FA then use the HappyFappy2FA indexer instead."
   - name: username
     type: text
     label: Username

src/Jackett.Common/Definitions/kufirc.yml

@@ -69,6 +69,10 @@ caps:
     book-search: [q]
 
 settings:
+  - name: info_2fa
+    type: info
+    label: "About 2FA"
+    default: "If you want to enable 2FA then use the Kufirc2FA indexer instead."
   - name: username
     type: text
     label: Username

src/Jackett.Common/Definitions/pixelcove.yml

@@ -64,6 +64,10 @@ caps:
     book-search: [q]
 
 settings:
+  - name: info_2fa
+    type: info
+    label: "About 2FA"
+    default: "If you want to enable 2FA then use the PixelCove2FA indexer instead."
   - name: username
     type: text
     label: Username

src/Jackett.Common/Definitions/totheglory.yml

@@ -90,6 +90,10 @@ caps:
     book-search: [q]
 
 settings:
+  - name: info_2fa
+    type: info
+    label: "About 2FA"
+    default: "If you want to enable 2FA then use the ToTheGlory2FA indexer instead."
   - name: username
     type: text
     label: Username