fix: Refactor remove_white_space and isblank functions

- Refactored the `remove_white_space` function in `utils.rs` to improve code readability.
- Updated indentation for better code formatting in the `remove_white_space` function.
- Renamed the parameter `str` to `string` for clarity in both functions.
- Fixed inconsistent indentation in the `isblank` function.
- Replaced `.as_str()` with direct string access in both functions for simplicity.
- Added comments to clarify the purpose of each function.

Author: fatihaziz

src/utils.rs

@@ -1,10 +1,11 @@
 pub fn remove_white_space(str: &String) -> String {
-    str.as_str()
-        .chars()
-        .filter(|c| !c.is_whitespace())
-        .collect()
+  str
+    .as_str()
+    .chars()
+    .filter(|c| !c.is_whitespace())
+    .collect()
 }
 
 pub fn isblank(str: &String) -> bool {
-    remove_white_space(str).is_empty()
+  remove_white_space(str).is_empty()
 }