feat(tui): builtin UI (TUI) sets client info #30397

Problem:
The default builtin UI client does not declare its client info. This
reduces discoverability and makes it difficult for plugins to identify
the UI.

Solution:
- Call nvim_set_client_info after attaching, as recommended by `:help dev-ui`.
- Also set the "pid" field.
- Also change `ui_active()` to return a count. Not directly relevant to
  this commit, but will be useful later.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/nvim/tui/input.c b/src/nvim/tui/input.c
index 3eb8d4ba2e..98dd7b4b45 100644
--- a/src/nvim/tui/input.c
+++ b/src/nvim/tui/input.c
@@ -464,7 +464,7 @@ static void tinput_timer_cb(uv_timer_t *handle)
 {
   TermInput *input = handle->data;
   // If the raw buffer is not empty, process the raw buffer first because it is
-  // processing an incomplete bracketed paster sequence.
+  // processing an incomplete bracketed paste sequence.
   size_t size = rstream_available(&input->read_stream);
   if (size) {
     size_t consumed = handle_raw_buffer(input, true, input->read_stream.read_pos, size);