lint: homogenize operations and minor fixes (gocritic)

Apply GoDoc comment policy (comments for humans should have a space
after the //; machine-readable comments shouldn't)

Use strings.ReplaceAll instead of strings.Replace when appropriate

Remove if/else chains by replacing them with switches

Use short assignment/increment notation

Replace single case switches with if statements

Combine else and if when appropriate

Signed-off-by: Moritz Poldrack <moritz@poldrack.dev>
Acked-by: Robin Jarry <robin@jarry.cc>

lib/ui/stack.go

@@ -43,8 +43,7 @@ func (stack *Stack) Draw(ctx *Context) {
 
 func (stack *Stack) MouseEvent(localX int, localY int, event tcell.Event) {
 	if len(stack.children) > 0 {
-		switch element := stack.Peek().(type) {
-		case Mouseable:
+		if element, ok := stack.Peek().(Mouseable); ok {
 			element.MouseEvent(localX, localY, event)
 		}
 	}