refactor: optimize parsing of whitespace

sbroad/sbroad-core/src/frontend/sql/query.pest

@@ -451,9 +451,9 @@ NotFlag = { ^"not" }
 //      REPEATING_RULES = _{ REPEATING_RULE ~ (WO ~ "," ~ WO ~ REPEATING_RULE)* }
 // * Note: Keep in mind that rule like `!{ RULE_1 ~ ("," ~ RULE_2)* }` will consume possible
 //         whitespaces that follow the `RULE_1` rule.
-EOL_COMMENT = @{ "--" ~ (!("\n") ~ ANY)* ~ "\n" }
+EOL_COMMENT = @{ "--" ~ (!NEWLINE ~ ANY)* ~ NEWLINE? }
 BLOCK_COMMENT = @{ "/*" ~ (!("*/") ~ ANY)* ~ "*/" }
-WHITESPACE = _{ " " | "\t" | "\n" | "\r\n" | EOL_COMMENT | BLOCK_COMMENT }
+WHITESPACE = _{ " "+ | NEWLINE | "\t" | EOL_COMMENT | BLOCK_COMMENT }
 W  = _{ WHITESPACE+ }
 WO = _{ WHITESPACE* }
 EOF = { EOI | ";" }