qc: add page (#12087)

* qc: add page

---------

Co-authored-by: Vitor Henrique <87824454+vitorhcl@users.noreply.github.com>

pages/common/qc.md

@@ -0,0 +1,25 @@
+# qc
+
+> Manage and execute command snippets stored in QOwnNotes notes.
+> See also: `qownnotes`.
+> More information: <https://www.qownnotes.org/getting-started/command-line-snippet-manager.html>.
+
+- Configure the snippet manager, e.g. to set the security token from QOwnNotes:
+
+`qc configure`
+
+- Search and print command snippets stored in your `Commands.md` note and all your notes tagged with `commands`:
+
+`qc search`
+
+- Execute a snippet and show the command before executing:
+
+`qc exec --command`
+
+- Execute the last snippet and show the command before executing:
+
+`qc exec --command --last`
+
+- Switch between note folders in QOwnNotes:
+
+`qc switch`