chore: apply clippy lint suggestions

warning: this argument is passed by value, but not consumed in the function body
   --> src/cmd/template.rs:539:24
    |
539 | fn format_float(value: Value, precision: u32) -> String {
    |                        ^^^^^ help: consider taking a reference instead: `&Value`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_pass_by_value
    = note: `-W clippy::needless-pass-by-value` implied by `-W clippy::pedantic`
    = help: to override `-W clippy::pedantic` add `#[allow(clippy::needless_pass_by_value)]`

warning: variables can be used directly in the `format!` string
   --> src/cmd/template.rs:547:17
    |
547 |                 format!("{:.1$}", float_num, precision)
    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#uninlined_format_args
    = note: `-W clippy::uninlined-format-args` implied by `-W clippy::pedantic`
    = help: to override `-W clippy::pedantic` add `#[allow(clippy::uninlined_format_args)]`
help: change this to
    |
547 -                 format!("{:.1$}", float_num, precision)
547 +                 format!("{float_num:.precision$}")
    |

warning: variables can be used directly in the `format!` string
   --> src/cmd/template.rs:559:27
    |
559 |                     |num| format!("{:.1$}", num, precision),
    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#uninlined_format_args
help: change this to
    |
559 -                     |num| format!("{:.1$}", num, precision),
559 +                     |num| format!("{num:.precision$}"),
    |

src/cmd/template.rs

@@ -536,15 +536,15 @@ fn substr(value: &str, start: u32, end: Option<u32>) -> String {
 
 /// Formats a float number string with the specified decimal precision.
 /// Returns --customfilter-error (default: <FILTER_ERROR>) if input cannot be parsed as float.
-fn format_float(value: Value, precision: u32) -> String {
+fn format_float(value: &Value, precision: u32) -> String {
     // Prevent excessive precision
     let precision = precision.min(16) as usize;
     match value.kind() {
         ValueKind::Number => {
             let float_num: f64;
             if let Ok(num) = value.clone().try_into() {
                 float_num = num;
-                format!("{:.1$}", float_num, precision)
+                format!("{float_num:.precision$}")
             } else {
                 format!(
                     r#"{}: "{value}" is not a float."#,
@@ -556,7 +556,7 @@ fn format_float(value: Value, precision: u32) -> String {
             if let Some(s) = value.as_str() {
                 s.parse::<f64>().map_or_else(
                     |_| FILTER_ERROR.get().unwrap().clone(),
-                    |num| format!("{:.1$}", num, precision),
+                    |num| format!("{num:.precision$}"),
                 )
             } else {
                 format!(