feat: add CountEntries to skip decryption for list --detail (#562)

* feat: add CountEntries to skip decryption for list --detail (#549)
* test: add CountEntries and countCategory tests at browser level
* fix: address review feedback on CountRows and countLocalStorage
* test: add CountRows unit tests

browser/firefox/extract_storage.go

@@ -9,7 +9,10 @@ import (
 	"github.com/moond4rk/hackbrowserdata/utils/sqliteutil"
 )
 
-const firefoxLocalStorageQuery = `SELECT originKey, key, value FROM webappsstore2`
+const (
+	firefoxLocalStorageQuery      = `SELECT originKey, key, value FROM webappsstore2`
+	firefoxCountLocalStorageQuery = `SELECT COUNT(*) FROM webappsstore2`
+)
 
 func extractLocalStorage(path string) ([]types.StorageEntry, error) {
 	return sqliteutil.QueryRows(path, true, firefoxLocalStorageQuery,
@@ -26,6 +29,10 @@ func extractLocalStorage(path string) ([]types.StorageEntry, error) {
 		})
 }
 
+func countLocalStorage(path string) (int, error) {
+	return sqliteutil.CountRows(path, true, firefoxCountLocalStorageQuery)
+}
+
 func reverseString(s string) string {
 	b := []byte(s)
 	for i, j := 0, len(b)-1; i < j; i, j = i+1, j-1 {