feat: go back support on virtual screen (#5461)

Now when you exit e.g. Alt Manager, you'll end up on the screen you entered it from.

src-theme/src/integration/rest.ts

@@ -170,6 +170,12 @@ export async function openScreen(name: string) {
     });
 }
 
+export async function deleteScreen() {
+    await fetch(`${API_BASE}/client/screen`, {
+        method: "DELETE"
+    });
+}
+
 export async function getServers(): Promise<Server[]> {
     const response = await fetch(`${API_BASE}/client/servers`);
     const data: Server[] = await response.json();

src-theme/src/routes/menu/altmanager/AltManager.svelte

@@ -1,8 +1,9 @@
 <script lang="ts">
     import {
+        deleteScreen,
         getAccounts,
         loginToAccount as loginToAccountRest,
-        openScreen, orderAccounts,
+        orderAccounts,
         removeAccount as restRemoveAccount,
         restoreSession,
         setAccountFavorite
@@ -202,7 +203,7 @@
         </ButtonContainer>
 
         <ButtonContainer>
-            <IconTextButton icon="icon-back.svg" title="Back" on:click={() => openScreen("title")}/>
+            <IconTextButton icon="icon-back.svg" title="Back" on:click={() => deleteScreen()}/>
         </ButtonContainer>
     </BottomButtonWrapper>
 </Menu>

src-theme/src/routes/menu/proxymanager/ProxyManager.svelte

@@ -3,10 +3,10 @@
         addProxyFromClipboard,
         checkProxy,
         connectToProxy as connectToProxyRest,
+        deleteScreen,
         disconnectFromProxy as disconnectFromProxyRest,
         getCurrentProxy,
         getProxies,
-        openScreen,
         removeProxy as removeProxyRest,
         setProxyFavorite,
     } from "../../../integration/rest.js";
@@ -254,7 +254,7 @@
         </ButtonContainer>
 
         <ButtonContainer>
-            <IconTextButton icon="icon-back.svg" title="Back" on:click={() => openScreen("title")}/>
+            <IconTextButton icon="icon-back.svg" title="Back" on:click={() => deleteScreen()}/>
         </ButtonContainer>
     </BottomButtonWrapper>
 </Menu>