feat: Add proxy clone functionality to settings and monitor forms

- Add Clone button next to Edit button in proxy settings list
- Add Clone button next to Edit button in monitor proxy selection
- Add showClone method to ProxyDialog component
- Cloned proxy automatically has default flag set to false
- Uses existing 'Clone' translation from language files

Fixes: Allows users to easily duplicate proxy configurations
without manually re-entering all settings

src/components/ProxyDialog.vue

@@ -174,6 +174,38 @@ export default {
             this.modal.show();
         },
 
+        /**
+         * Show dialog to clone a proxy
+         * @param {number} proxyID ID of proxy to clone
+         * @returns {void}
+         */
+        showClone(proxyID) {
+            if (proxyID) {
+                for (let proxy of this.$root.proxyList) {
+                    if (proxy.id === proxyID) {
+                        // Create a clone of the proxy data
+                        this.proxy = {
+                            protocol: proxy.protocol,
+                            host: proxy.host,
+                            port: proxy.port,
+                            auth: proxy.auth,
+                            username: proxy.username,
+                            password: proxy.password,
+                            active: proxy.active,
+                            default: false, // Cloned proxy should not be default
+                            applyExisting: false,
+                        };
+                        break;
+                    }
+                }
+            }
+            
+            // Set id to null to indicate this is a new proxy (clone)
+            this.id = null;
+            
+            this.modal.show();
+        },
+
         /**
          * Submit form data for saving
          * @returns {void}

src/components/settings/Proxies.vue

@@ -13,7 +13,8 @@
                 <li v-for="(proxy, index) in $root.proxyList" :key="index" class="list-group-item">
                     {{ proxy.host }}:{{ proxy.port }} ({{ proxy.protocol }})
                     <span v-if="proxy.default === true" class="badge bg-primary ms-2">{{ $t("Default") }}</span><br>
-                    <a href="#" @click="$refs.proxyDialog.show(proxy.id)">{{ $t("Edit") }}</a>
+                    <a href="#" @click="$refs.proxyDialog.show(proxy.id)">{{ $t("Edit") }}</a> | 
+                    <a href="#" @click="$refs.proxyDialog.showClone(proxy.id)">{{ $t("Clone") }}</a>
                 </li>
             </ul>
 

src/pages/EditMonitor.vue

@@ -842,7 +842,8 @@
 
                                     <label class="form-check-label" :for="`proxy-${proxy.id}`">
                                         {{ proxy.host }}:{{ proxy.port }} ({{ proxy.protocol }})
-                                        <a href="#" @click="$refs.proxyDialog.show(proxy.id)">{{ $t("Edit") }}</a>
+                                        <a href="#" @click="$refs.proxyDialog.show(proxy.id)">{{ $t("Edit") }}</a> | 
+                                        <a href="#" @click="$refs.proxyDialog.showClone(proxy.id)">{{ $t("Clone") }}</a>
                                     </label>
 
                                     <span v-if="proxy.default === true" class="badge bg-primary ms-2">{{ $t("default") }}</span>