*: replace file(s) syntax and add path/to/ to more things (#9592)

* Fix file(s) and more path/to

* Update pages.it/common/rm.md

Co-authored-by: Emily Grace Seville <EmilySeville7cfg@gmail.com>

* thanks emily your suggestion was dogshit

https://github.com/tldr-pages/tldr/blob/main/contributing-guides/translation-templates/common-arguments.md

Co-authored-by: Emily Grace Seville <EmilySeville7cfg@gmail.com>

pages/common/mupdf.md

@@ -5,23 +5,23 @@
 
 - Open a PDF on the first page:
 
-`mupdf {{filename}}`
+`mupdf {{path/to/file}}`
 
 - Open a PDF on page 3:
 
-`mupdf {{filename}} {{3}}`
+`mupdf {{path/to/file}} {{3}}`
 
 - Open a password secured PDF:
 
-`mupdf -p {{password}} {{filename}}`
+`mupdf -p {{password}} {{path/to/file}}`
 
 - Open a PDF with an initial zoom level, specified as DPI, of 72:
 
-`mupdf -r {{72}} {{filename}}`
+`mupdf -r {{72}} {{path/to/file}}`
 
 - Open a PDF with inverted color:
 
-`mupdf -I {{filename}}`
+`mupdf -I {{path/to/file}}`
 
 - Open a PDF tinted red #FF0000 (hexadecimal color syntax RRGGBB):