+site without a +cljs option leads to broken project

Nobody has claimed this yet.

```
lein new luminus my-project +sqlite +sassc +site
cd my-project
lein run
```

result:
```
java.lang.Exception: Error loading /home/user/src/proj/my-project/project.clj
at leiningen.core.project$read_raw$fn__8050.invoke (project.clj:1104)
leiningen.core.project$read_raw.invokeStatic (project.clj:1098)
leiningen.core.project$read_raw.invoke (project.clj:1094)
leiningen.core.project$read.invokeStatic (project.clj:1115)
leiningen.core.project$read.invoke (project.clj:1112)
leiningen.core.project$read.invokeStatic (project.clj:1116)
leiningen.core.project$read.invoke (project.clj:1112)
leiningen.core.main$_main$fn__7423.invoke (main.clj:448)
leiningen.core.main$_main.invokeStatic (main.clj:442)
leiningen.core.main$_main.doInvoke (main.clj:439)
clojure.lang.RestFn.applyTo (RestFn.java:137)
clojure.lang.Var.applyTo (Var.java:705)
clojure.core$apply.invokeStatic (core.clj:667)
clojure.main$main_opt.invokeStatic (main.clj:514)
clojure.main$main_opt.invoke (main.clj:510)
clojure.main$main.invokeStatic (main.clj:664)
clojure.main$main.doInvoke (main.clj:616)
clojure.lang.RestFn.applyTo (RestFn.java:137)
clojure.lang.Var.applyTo (Var.java:705)
clojure.main.main (main.java:40)
Caused by: clojure.lang.Compiler$CompilerException: Syntax error reading source at (/home/user/src/proj/my-project/project.clj:72:53).
#:clojure.error{:phase :read-source, :line 72, :column 53, :source "/home/user/src/proj/my-project/project.clj"}
at clojure.lang.Compiler.load (Compiler.java:7647)
clojure.lang.Compiler.loadFile (Compiler.java:7578)
clojure.lang.RT$3.invoke (RT.java:327)
leiningen.core.project$read_raw$fn__8050.invoke (project.clj:1102)
leiningen.core.project$read_raw.invokeStatic (project.clj:1098)
leiningen.core.project$read_raw.invoke (project.clj:1094)
leiningen.core.project$read.invokeStatic (project.clj:1115)
leiningen.core.project$read.invoke (project.clj:1112)
leiningen.core.project$read.invokeStatic (project.clj:1116)
leiningen.core.project$read.invoke (project.clj:1112)
leiningen.core.main$_main$fn__7423.invoke (main.clj:448)
leiningen.core.main$_main.invokeStatic (main.clj:442)
leiningen.core.main$_main.doInvoke (main.clj:439)
clojure.lang.RestFn.applyTo (RestFn.java:137)
clojure.lang.Var.applyTo (Var.java:705)
clojure.core$apply.invokeStatic (core.clj:667)
clojure.main$main_opt.invokeStatic (main.clj:514)
clojure.main$main_opt.invoke (main.clj:510)
clojure.main$main.invokeStatic (main.clj:664)
clojure.main$main.doInvoke (main.clj:616)
clojure.lang.RestFn.applyTo (RestFn.java:137)
clojure.lang.Var.applyTo (Var.java:705)
clojure.main.main (main.java:40)
Caused by: java.lang.RuntimeException: Map literal must contain an even number of forms
at clojure.lang.Util.runtimeException (Util.java:221)
clojure.lang.LispReader$MapReader.invoke (LispReader.java:1357)
clojure.lang.LispReader.read (LispReader.java:285)
clojure.lang.LispReader.readDelimitedList (LispReader.java:1398)
clojure.lang.LispReader$MapReader.invoke (LispReader.java:1355)
clojure.lang.LispReader.read (LispReader.java:285)
clojure.lang.LispReader.readDelimitedList (LispReader.java:1398)
clojure.lang.LispReader$ListReader.invoke (LispReader.java:1243)
clojure.lang.LispReader.read (LispReader.java:285)
clojure.lang.LispReader.read (LispReader.java:216)
clojure.lang.Compiler.load (Compiler.java:7634)
clojure.lang.Compiler.loadFile (Compiler.java:7578)
clojure.lang.RT$3.invoke (RT.java:327)
leiningen.core.project$read_raw$fn__8050.invoke (project.clj:1102)
leiningen.core.project$read_raw.invokeStatic (project.clj:1098)
leiningen.core.project$read_raw.invoke (project.clj:1094)
leiningen.core.project$read.invokeStatic (project.clj:1115)
leiningen.core.project$read.invoke (project.clj:1112)
leiningen.core.project$read.invokeStatic (project.clj:1116)
leiningen.core.project$read.invoke (project.clj:1112)
leiningen.core.main$_main$fn__7423.invoke (main.clj:448)
leiningen.core.main$_main.invokeStatic (main.clj:442)
leiningen.core.main$_main.doInvoke (main.clj:439)
clojure.lang.RestFn.applyTo (RestFn.java:137)
clojure.lang.Var.applyTo (Var.java:705)
clojure.core$apply.invokeStatic (core.clj:667)
clojure.main$main_opt.invokeStatic (main.clj:514)
clojure.main$main_opt.invoke (main.clj:510)
clojure.main$main.invokeStatic (main.clj:664)
clojure.main$main.doInvoke (main.clj:616)
clojure.lang.RestFn.applyTo (RestFn.java:137)
clojure.lang.Var.applyTo (Var.java:705)
clojure.main.main (main.java:40)

```

project.clj:
```
...snip
:profiles
{:uberjar {:omit-source true

:cljsbuild


:aot :all
:uberjar-name "probematic.jar"
:source-paths ["env/prod/clj" ]
:resource-paths ["env/prod/resources"]}

:dev [:project/dev :profiles/dev]
:test [:project/dev :project/test :profiles/test]

:project/dev {:jvm-opts ["-Dconf=dev-config.edn" ]
:dependencies [[binaryage/devtools "1.0.3"]
[cider/piggieback "0.5.2"]
[doo "0.1.11"]
[org.clojure/tools.namespace "1.1.0"]
[pjstadig/humane-test-output "0.11.0"]
[prone "2021-04-23"]
[ring/ring-devel "1.9.4"]
[ring/ring-mock "0.4.0"]]
:plugins [[com.jakemccrary/lein-test-refresh "0.24.1"]
[jonase/eastwood "0.3.5"]
[cider/cider-nrepl "0.26.0"]]
:cljsbuild


:doo {:build "test"}
:source-paths ["env/dev/clj" ]
:resource-paths ["env/dev/resources"]
:repl-options {:init-ns user
:timeout 120000}
:injections [(require 'pjstadig.humane-test-output)
(pjstadig.humane-test-output/activate!)]}
:project/test {:jvm-opts ["-Dconf=test-config.edn" ]
:resource-paths ["env/test/resources"]
:cljsbuild
}
:profiles/dev {}
:profiles/test {}})

```

Those three `:cljsbuild` are breaking it.

Reproduce the issue with `lein new luminus my-project +sqlite +sassc +site`, then inspect the generated project.clj, especially the three empty :cljsbuild entries in its profiles. Done means the generated project.clj is valid and `lein run` starts without the reported map-literal error.

Written by the indexing model from the issue text.