makefile+dev.Dockerfile: add install-all command

Add a new `make install-all` command that will perform all `make
install` actions along with generating the manpages. The `manpages`
command is then removed from the existing `make install` command. The
docker build is then updated to use the new `make install-all` command.
This is done because some users running `make install` may be doing so
in environments where they do not have write access to the directory
where the man pages need to be written to.

docs/release-notes/release-notes-0.18.0.md

@@ -284,7 +284,9 @@
 
 * [Man pages](https://github.com/lightningnetwork/lnd/pull/8525) Generate man
   pages automatically using `lncli generatemanpage` command for both `lncli`
-  and `lnd` commands when running `make install` in the Makefile.
+  and `lnd` commands when running 
+  [`make install-all`](https://github.com/lightningnetwork/lnd/pull/8739) in 
+  the Makefile.
 
 # Improvements
 ## Functional Updates