Bug fix for get_disks()

In rare circumstances we could be omitting drives from the list

core/src/system/diskpart.rs

@@ -286,7 +286,7 @@ pub fn get_disks() -> Vec<Disk> {
     contents = String::from_utf8_lossy(&output.stdout).to_string();
     if let Some(return_code) = output.status.code() {
         let disk_nums = parse_disk_numbers(&contents);
-        if return_code != 0 && !disk_nums.is_empty() {
+        if return_code != 0 && !disk_nums.is_empty() && disk_nums.len() != DEFAULT_MAX_DISKS {
             // The base assumptions were correct! skipping fallback method
             //
             // Since the return_code was not zero, and at least one disk was detected, that