Check for new lints and following kebab-case for naming R files

[IndrajeetPatil]

• [x] clean new lints
• [x] adopt consistent naming schema for R files (kebab-case)

---

The code used for the latter:

library(fs)
library(stringr)
library(dplyr)
library(purrr)

old_full_file_names <- dir_ls(recurse = TRUE, glob = "*.R")
extract_file_names <- function(filenames) {
  filenames %>%
    basename() %>%
    tools::file_path_sans_ext()
}

old_filenames <- extract_file_names(old_full_file_names)
new_filenames <- stringr::str_replace_all(old_filenames, "_", "-")

new_full_file_names <- purrr::pmap_chr(
  list(old_full_file_names, old_filenames, new_filenames),
  stringr::str_replace
) %>%
  unname()

purrr::walk2(
  old_full_file_names,
  new_full_file_names,
  ~ fs::file_move(.x, .y)
)

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Comparison is base (325c48d) 100.00% compared to head (5d61b96) 100.00%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #260 +/- ## ========================================= Coverage 100.00% 100.00% ========================================= Files 14 14 Lines 495 495 ========================================= Hits 495 495 ```

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