fix: Convert if-else chains to switch statements for staticcheck QF1003

- Convert cvIcons migration logic to switch statement (line 103-110)
- Convert currentIcons migration logic to switch statement (line 861-866)
- Resolves golangci-lint staticcheck QF1003 warnings in GitHub Actions

internal/handlers/cv.go

@@ -100,10 +100,11 @@ func (h *CVHandler) Home(w http.ResponseWriter, r *http.Request) {
 		cvLength = "long"
 		setPreferenceCookie(w, "cv-length", "long")
 	}
-	if cvIcons == "true" {
+	switch cvIcons {
+	case "true":
 		cvIcons = "show"
 		setPreferenceCookie(w, "cv-icons", "show")
-	} else if cvIcons == "false" {
+	case "false":
 		cvIcons = "hide"
 		setPreferenceCookie(w, "cv-icons", "hide")
 	}
@@ -857,9 +858,10 @@ func (h *CVHandler) ToggleIcons(w http.ResponseWriter, r *http.Request) {
 	currentIcons := getPreferenceCookie(r, "cv-icons", "show")
 
 	// Migrate old values if needed
-	if currentIcons == "true" {
+	switch currentIcons {
+	case "true":
 		currentIcons = "show"
-	} else if currentIcons == "false" {
+	case "false":
 		currentIcons = "hide"
 	}