commit f2011e8

Replace maps.Keys/slices.Sorted with Go 1.21-compatible code

These functions require Go 1.23 but go.mod declares Go 1.21.

 1@@ -2,10 +2,8 @@ package senpai
 2 
 3 import (
 4 	"fmt"
 5-	"maps"
 6 	"os"
 7 	"path/filepath"
 8-	"slices"
 9 	"sort"
10 	"strings"
11 
12@@ -276,7 +274,12 @@ func (app *App) completionsCommands(cs []ui.Completion, cursorIdx int, text []ru
13 	}
14 
15 	uText := strings.ToUpper(string(text[1:cursorIdx]))
16-	for _, name := range slices.Sorted(maps.Keys(commands)) {
17+	names := make([]string, 0, len(commands))
18+	for name := range commands {
19+		names = append(names, name)
20+	}
21+	sort.Strings(names)
22+	for _, name := range names {
23 		if strings.HasPrefix(name, uText) {
24 			c := make([]rune, len(text)+len(name)-len(uText))
25 			copy(c[:1], []rune("/"))