refactor(ui): add : to the end of input prompts (#2857)

Author: AmadeusK525

lua/codecompanion/interactions/chat/tools/builtin/insert_edit_into_file/diff.lua

@@ -17,7 +17,7 @@ end
 ---Prompt the user for a rejection reason
 ---@param callback function
 local function get_rejection_reason(callback)
-  ui_utils.input({ prompt = "Rejection reason" }, function(input)
+  ui_utils.input({ prompt = "Rejection reason: " }, function(input)
     callback(input or "")
   end)
 end

lua/codecompanion/interactions/chat/tools/orchestrator.lua

@@ -322,7 +322,7 @@ function Orchestrator:setup_next_tool(input)
             keymap = keys.reject,
             label = labels.reject,
             callback = function()
-              ui_utils.input({ prompt = fmt("Reason for rejecting `%s`", self.tool.name) }, function(i)
+              ui_utils.input({ prompt = fmt("Reason for rejecting `%s`: ", self.tool.name) }, function(i)
                 self.output.rejected(cmd, { reason = i })
                 self:setup_next_tool()
               end)