feat(server): improve private key and cloud link flows

Add server private key generation from the dropdown, prevent deleting
private keys that are still in use, and close cloud provider link modals
after successful linking.

app/Livewire/Server/Show.php

@@ -828,6 +828,7 @@ class Show extends Component
             $this->hetznerSearchError = null;
 
             $this->dispatch('success', 'Server successfully linked to Hetzner Cloud!');
+            $this->dispatch('close-modal');
             $this->dispatch('refreshServerShow');
         } catch (\Throwable $e) {
             return handleError($e, $this);
@@ -958,6 +959,7 @@ class Show extends Component
             $this->digitalOceanSearchError = null;
 
             $this->dispatch('success', 'Server successfully linked to DigitalOcean!');
+            $this->dispatch('close-modal');
             $this->dispatch('refreshServerShow');
         } catch (\Throwable $e) {
             return handleError($e, $this);
@@ -1082,6 +1084,7 @@ class Show extends Component
             $this->vultrSearchError = null;
 
             $this->dispatch('success', 'Server successfully linked to Vultr!');
+            $this->dispatch('close-modal');
             $this->dispatch('refreshServerShow');
         } catch (\Throwable $e) {
             return handleError($e, $this);