Fix remoting things (#19587)

- Fixes modal closing when using the remote modal folder 
- Fixes a bug with local terminals where they could open in / instead of
~
- Fixes a bug where SSH connections would continue running after their
window is closed
- Hides SSH Terminal process details from Zed UI
- Implement `cmd-o` for remote projects
- Implement LanguageServerPromptRequest for remote LSPs

Release Notes:

- N/A

crates/proto/proto/zed.proto

@@ -299,6 +299,9 @@ message Envelope {
         GetPermalinkToLineResponse get_permalink_to_line_response = 265;
 
         FlushBufferedMessages flush_buffered_messages = 267;
+
+        LanguageServerPromptRequest language_server_prompt_request = 268;
+        LanguageServerPromptResponse language_server_prompt_response = 269; // current max
     }
 
     reserved 87 to 88;
@@ -2528,3 +2531,25 @@ message GetPermalinkToLineResponse {
 
 message FlushBufferedMessages {}
 message FlushBufferedMessagesResponse {}
+
+message LanguageServerPromptRequest {
+    uint64 project_id = 1;
+
+    oneof level {
+        Info info = 2;
+        Warning warning = 3;
+        Critical critical = 4;
+    }
+
+    message Info {}
+    message Warning {}
+    message Critical {}
+
+    string message = 5;
+    repeated string actions = 6;
+    string lsp_name = 7;
+}
+
+message LanguageServerPromptResponse {
+    optional uint64 action_response = 1;
+}

crates/proto/src/proto.rs

@@ -373,6 +373,8 @@ messages!(
     (GetPermalinkToLine, Foreground),
     (GetPermalinkToLineResponse, Foreground),
     (FlushBufferedMessages, Foreground),
+    (LanguageServerPromptRequest, Foreground),
+    (LanguageServerPromptResponse, Foreground),
 );
 
 request_messages!(
@@ -500,6 +502,7 @@ request_messages!(
     (OpenServerSettings, OpenBufferResponse),
     (GetPermalinkToLine, GetPermalinkToLineResponse),
     (FlushBufferedMessages, Ack),
+    (LanguageServerPromptRequest, LanguageServerPromptResponse),
 );
 
 entity_messages!(
@@ -577,6 +580,7 @@ entity_messages!(
     HideToast,
     OpenServerSettings,
     GetPermalinkToLine,
+    LanguageServerPromptRequest
 );
 
 entity_messages!(