pages*: improve list placeholders and wording of descriptions (#12111)

* pages*: improve wording and list placeholders

* clamav: fix verb tenses

Co-authored-by: Juri Dispan <juri.dispan@posteo.net>

* buzzphrase: use k instead of n for number of phrases

Co-authored-by: Juri Dispan <juri.dispan@posteo.net>

* adguardhome: use non-default instead of different

* adguardhome: use configuration instead of config

Co-authored-by: K.B.Dharun Krishna <kbdharunkrishna@gmail.com>

* goimports, module: fix list placeholders

Co-authored-by: K.B.Dharun Krishna <kbdharunkrishna@gmail.com>

* pages*: leave stems and extensions in the same placeholders

* pages*: fix list placeholders

* pages*: fix list placeholders

* pages*: apply suggestions from code review

Co-authored-by: Lena <126529524+acuteenvy@users.noreply.github.com>

* qpdf: enclose n with backticks

Co-authored-by: Lena <126529524+acuteenvy@users.noreply.github.com>

---------

Co-authored-by: Juri Dispan <juri.dispan@posteo.net>
Co-authored-by: K.B.Dharun Krishna <kbdharunkrishna@gmail.com>
Co-authored-by: Lena <126529524+acuteenvy@users.noreply.github.com>

pages/common/goimports.md

@@ -5,16 +5,16 @@
 
 - Display the completed import source file:
 
-`goimports {{path/to/file}}.go`
+`goimports {{path/to/file.go}}`
 
 - Write the result back to the source file instead of `stdout`:
 
-`goimports -w {{path/to/file}}.go`
+`goimports -w {{path/to/file.go}}`
 
 - Display diffs and write the result back to the source file:
 
-`goimports -w -d {{path/to/file}}.go`
+`goimports -w -d {{path/to/file.go}}`
 
 - Set the import prefix string after 3rd-party packages (comma-separated list):
 
-`goimports -local {{path/to/package}} {{path/to/file}}.go`
+`goimports -local {{path/to/package1,path/to/package2,...}} {{path/to/file.go}}`