capitalize comment

Signed-off-by: drew <me@andrinoff.com>

Author: andrinoff

tui/composer.go

@@ -194,7 +194,7 @@ func (m *Composer) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 		m.bodyInput.SetWidth(inputWidth)
 		m.signatureInput.SetWidth(inputWidth)
 		if msg.Height > 0 {
-			// fixed rows: title, from, to, cc, bcc, subject, sig label,
+			// Fixed rows: title, from, to, cc, bcc, subject, sig label,
 			// attachment, smime, button, blank, tip, help = 13
 			const fixedRows = 13
 			available := msg.Height - fixedRows