office: Rename mail module to office module

Reflecting the somewhat expanding scope of the module, renamed it to
office. Still keeps the old files and setups but also got a new README
file.

office/.config/vdirsyncer/config

@@ -0,0 +1,39 @@
+[general]
+status_path = "~/.local/vdirsyncer/status/"
+
+[pair calendar]
+a = "calendar_local"
+b = "calendar_nextcloud"
+collections = ["from a", "from b"]
+metadata = ["displayname", "color"]
+conflict_resolution = "b wins"
+
+[storage calendar_local]
+type = "filesystem"
+path = "~/documents/calendars/"
+fileext = ".ics"
+
+[storage calendar_nextcloud]
+type = "caldav"
+url = "https://files.martyoeh.me/remote.php/dav/"
+username.fetch = ["shell", "pass personal/files.martyoeh.me/me | awk -F': ' '{print $2}'"]
+password.fetch = ["shell", "pass personal/files.martyoeh.me/me | head -n1"]
+
+[pair contacts]
+a = "contacts_local"
+b = "contacts_nextcloud"
+collections = ["from a", "from b"]
+metadata = ["displayname", "description"]
+conflict_resolution = "b wins"
+
+[storage contacts_local]
+type = "filesystem"
+path = "~/documents/contacts/"
+fileext = ".vcf"
+
+[storage contacts_nextcloud]
+type = "carddav"
+url = "https://files.martyoeh.me/remote.php/dav/"
+username.fetch = ["shell", "pass personal/files.martyoeh.me/me | awk -F': ' '{print $2}'"]
+password.fetch = ["shell", "pass personal/files.martyoeh.me/me | head -n1"]
+