fixed error with element client update task

roles/custom/matrix-element-call/tasks/install.yml

@@ -80,7 +80,7 @@
 
 # Update the well-known client file for Element Call (adding RTC FOCI)
 - name: Update the well-known client file for Element Call
-  ansible.builtin.include_tasks: update_well_known_client.yml
+  ansible.builtin.include_tasks: "tasks/update_well_known_client.yml"
   when: matrix_element_call_enabled | bool
 
 
@@ -98,3 +98,4 @@
   ansible.builtin.include_tasks: "tasks/update_element_web_config.yml"
   when: matrix_element_call_enabled | bool
 
+

roles/custom/matrix-element-call/tasks/update_element_web_config.yml

@@ -1,27 +1,38 @@
+- name: Load Element Web config.json content
+  ansible.builtin.slurp:
+    src: "{{ element_web_config_path }}"
+  register: element_web_config_content_raw
+  ignore_errors: no
+
+- name: Parse Element Web config.json content
+  ansible.builtin.set_fact:
+    element_web_config_content: "{{ element_web_config_content_raw['content'] | b64decode | from_json }}"
+  when: element_web_config_content_raw is defined and element_web_config_content_raw['content'] is defined
+
 - name: Update Element Web config.json settings
-  vars:
-    additional_settings: |
-      {
-          "features": {
-              "feature_video_rooms": true,
-              "feature_new_room_decoration_ui": true,
-              "feature_group_calls": true,
-              "feature_element_call_video_rooms": true
-          },
-          "element_call": {
-              "url": "https://{{ matrix_element_call_domain }}",
-              "participant_limit": 8,
-              "brand": "Element Call",
-              "use_exclusively": true
-          }
-      }
-  set_fact:
-    updated_element_web_config: "{{ (element_web_config_content.content | b64decode | from_json) | combine(additional_settings | from_json, recursive=True) }}"
-    
-- name: Write updated Element Web config.json
-  copy:
-    content: "{{ updated_element_web_config | to_nice_json }}"
+  ansible.builtin.set_fact:
+    element_web_config_content:
+      "{{ element_web_config_content | combine({
+        'features': {
+          'feature_video_rooms': true,
+          'feature_new_room_decoration_ui': true,
+          'feature_group_calls': true,
+          'feature_element_call_video_rooms': true
+        },
+        'element_call': {
+          'url': 'https://{{ matrix_element_call_domain }}',
+          'participant_limit': 8,
+          'brand': 'Element Call',
+          'use_exclusively': true
+        }
+      }, recursive=True) }}"
+  when: element_web_config_content is defined
+
+- name: Write updated Element Web config.json back to disk
+  ansible.builtin.copy:
+    content: "{{ element_web_config_content | to_nice_json }}"
     dest: "{{ element_web_config_path }}"
     mode: '0644'
     owner: "{{ matrix_user_username }}"
     group: "{{ matrix_user_groupname }}"
+  when: element_web_config_content is defined