Add Notification Filters and AllMarkSeen Endpoint to API Documentation

- Introduced new query parameters for filtering notifications by 'seen' status and 'priority' in the API documentation, enhancing the flexibility of notification retrieval.
- Added a new endpoint to mark all notifications as seen for a user, including detailed Swagger documentation for the new functionality.
- Updated existing API documentation to reflect the changes, ensuring clarity for API consumers and improving overall documentation quality.

cmd/web/docs/swagger.yaml

@@ -2849,6 +2849,14 @@ paths:
         in: query
         name: recipient
         type: string
+      - description: Seen filter
+        in: query
+        name: seen
+        type: boolean
+      - description: Priority filter
+        in: query
+        name: priority
+        type: string
       - description: Limit results
         in: query
         name: limit
@@ -2986,6 +2994,14 @@ paths:
         in: query
         name: recipient
         type: string
+      - description: Seen filter
+        in: query
+        name: seen
+        type: boolean
+      - description: Priority filter
+        in: query
+        name: priority
+        type: string
       - description: Limit results
         in: query
         name: limit
@@ -4670,6 +4686,14 @@ paths:
         in: query
         name: recipient
         type: string
+      - description: Seen filter
+        in: query
+        name: seen
+        type: boolean
+      - description: Priority filter
+        in: query
+        name: priority
+        type: string
       - description: Limit results
         in: query
         name: limit
@@ -4719,6 +4743,37 @@ paths:
       summary: Get notifications for the user
       tags:
       - Notification
+  /api/v1/notifications/all-seen/{user_id}:
+    get:
+      consumes:
+      - application/json
+      description: Mark all notifications as seen for a user
+      parameters:
+      - description: User ID
+        in: path
+        name: user_id
+        required: true
+        type: string
+      produces:
+      - application/json
+      responses:
+        "200":
+          description: OK
+          schema:
+            $ref: '#/definitions/response.APIResponse'
+        "400":
+          description: Bad Request
+          schema:
+            $ref: '#/definitions/response.APIResponse'
+        "500":
+          description: Internal Server Error
+          schema:
+            $ref: '#/definitions/response.APIResponse'
+      security:
+      - BearerAuth: []
+      summary: Mark all notifications as seen for a user
+      tags:
+      - Notification
   /api/v1/notifications/mark-seen/{id}:
     get:
       consumes: