add front_proxy_clear button

translations/fa_IR.ts

@@ -298,6 +298,10 @@ For NekoBox, this rewrites the underlying(localhost) DNS in VPN mode, normal mod
         <source>None</source>
         <translation type="unfinished">هیچ یک</translation>
     </message>
+    <message>
+        <source>Clear</source>
+        <translation type="unfinished">پاک کردن</translation>
+    </message>
 </context>
 <context>
     <name>DialogEditProfile</name>

translations/zh_CN.ts

@@ -298,6 +298,10 @@ For NekoBox, this rewrites the underlying(localhost) DNS in VPN mode, normal mod
         <source>None</source>
         <translation>无</translation>
     </message>
+    <message>
+        <source>Clear</source>
+        <translation>清除</translation>
+    </message>
 </context>
 <context>
     <name>DialogEditProfile</name>
@@ -1103,7 +1107,7 @@ This needs to be run NekoBox with administrator privileges.</source>
     </message>
     <message>
         <source>Add profile from clipboard</source>
-        <translation>从剪切板添加</translation>
+        <translation>从剪贴板添加</translation>
     </message>
     <message>
         <source>Debug Info</source>

ui/edit/dialog_edit_group.cpp

@@ -36,6 +36,10 @@ DialogEditGroup::DialogEditGroup(const std::shared_ptr<NekoGui::Group> &ent, QWi
 
     CACHE.front_proxy = ent->front_proxy_id;
     refresh_front_proxy();
+    connect(ui->front_proxy_clear, &QPushButton::clicked, this, [=] {
+        CACHE.front_proxy = -1;
+        refresh_front_proxy();
+    });
 
     connect(ui->copy_links, &QPushButton::clicked, this, [=] {
         QStringList links;

ui/edit/dialog_edit_group.ui

@@ -84,13 +84,6 @@
         </item>
        </widget>
       </item>
-      <item row="2" column="1">
-       <widget class="QPushButton" name="front_proxy">
-        <property name="text">
-         <string notr="true"/>
-        </property>
-       </widget>
-      </item>
       <item row="2" column="0">
        <widget class="QLabel" name="front_proxy_l">
         <property name="text">
@@ -98,6 +91,30 @@
         </property>
        </widget>
       </item>
+      <item row="2" column="1">
+       <layout class="QHBoxLayout" name="horizontalLayout">
+        <item>
+         <widget class="QPushButton" name="front_proxy">
+          <property name="text">
+           <string notr="true"/>
+          </property>
+         </widget>
+        </item>
+        <item>
+         <widget class="QPushButton" name="front_proxy_clear">
+          <property name="sizePolicy">
+           <sizepolicy hsizetype="Maximum" vsizetype="Fixed">
+            <horstretch>0</horstretch>
+            <verstretch>0</verstretch>
+           </sizepolicy>
+          </property>
+          <property name="text">
+           <string>Clear</string>
+          </property>
+         </widget>
+        </item>
+       </layout>
+      </item>
      </layout>
     </widget>
    </item>
@@ -173,6 +190,17 @@
    <header>ui/widget/MyLineEdit.h</header>
   </customwidget>
  </customwidgets>
+ <tabstops>
+  <tabstop>name</tabstop>
+  <tabstop>type</tabstop>
+  <tabstop>front_proxy</tabstop>
+  <tabstop>front_proxy_clear</tabstop>
+  <tabstop>manually_column_width</tabstop>
+  <tabstop>archive</tabstop>
+  <tabstop>url</tabstop>
+  <tabstop>copy_links</tabstop>
+  <tabstop>copy_links_nkr</tabstop>
+ </tabstops>
  <resources/>
  <connections>
   <connection>