NetworkPreference: Move out and simply proxy logic

No need to check connectivity as soon as URL is set as SplashFragment will
only let you login when a valid connection is available.

Use a modern dialog and EditText to do set the URL with minimal verification.

Signed-off-by: Aayush Gupta <aayushgupta219@gmail.com>

app/src/main/res/layout/dialog_text_input_edit_text.xml

@@ -10,7 +10,6 @@
         android:id="@+id/textInputEditText"
         style="@style/Widget.Material3.TextInputEditText.OutlinedBox"
         android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:hint="@string/add_dispenser_hint" />
+        android:layout_height="wrap_content" />
 </com.google.android.material.textfield.TextInputLayout>
 

app/src/main/res/navigation/mobile_navigation.xml

@@ -484,4 +484,8 @@
             app:popUpTo="@id/mobile_navigation"
             app:popUpToInclusive="true" />
     </dialog>
+    <dialog
+        android:id="@+id/proxyURLDialog"
+        android:name="com.aurora.store.view.ui.preferences.ProxyURLDialog"
+        android:label="@string/pref_network_proxy_url" />
 </navigation>

app/src/main/res/values/strings.xml

@@ -233,6 +233,7 @@
     <string name="pref_network_proxy_enable">"Enable proxy"</string>
     <string name="pref_network_proxy_enable_desc">"Allow all traffic from app to go through the proxy"</string>
     <string name="pref_network_proxy_url">"Proxy URL"</string>
+    <string name="pref_network_proxy_url_message">Enter a valid proxy URL to pass all data through the proxy.</string>
     <string name="pref_ui_accent_title">"Accent"</string>
     <string name="pref_ui_theme_black">"Black"</string>
     <string name="pref_ui_theme_dark">"Dark"</string>

app/src/main/res/xml/preferences_network.xml

@@ -38,12 +38,6 @@
         app:summary="@string/pref_network_proxy_enable_desc"
         app:title="@string/pref_network_proxy_enable" />
 
-    <EditTextPreference
-        app:dependency="PREFERENCE_PROXY_ENABLED"
-        app:iconSpaceReserved="false"
-        app:key="PREFERENCE_PROXY_URL"
-        app:title="@string/pref_network_proxy_url" />
-
     <PreferenceCategory
         app:iconSpaceReserved="false"
         app:singleLineTitle="false"