Tweak starter template (#5134)

Fixes #5098 Fixes #5109

Author: chenglou

jscomp/bsb/bsb_templates.ml

@@ -57,7 +57,12 @@ let root = ([
  \  \"sources\": {\n\
  \  \"dir\" : \"src\",\n\
  \  \"subdirs\" : true\n\
- \  }\n\
+ \  },\n\
+ \  \"package-specs\": {\n\
+ \  \"module\": \"es6\",\n\
+ \  \"in-source\": true\n\
+ \  },\n\
+ \  \"suffix\": \".bs.js\"\n\
  }\n\
  "
  );
@@ -81,7 +86,7 @@ let root = ([
  }"
  );
  Dir("src",[
- File("demo.res",
+ File("Demo.res",
  "\n\
  Js.log(\"Hello, ReScript\")"
  ) 

jscomp/bsb/templates/basic/bsconfig.json

@@ -4,5 +4,10 @@
  "sources": {
  "dir" : "src",
  "subdirs" : true
- }
+ },
+ "package-specs": {
+ "module": "es6",
+ "in-source": true
+ },
+ "suffix": ".bs.js"
 }

jscomp/bsb/templates/basic/src/demo.res renamed to jscomp/bsb/templates/basic/src/Demo.res

@@ -14386,7 +14386,12 @@ let root = ([
  \ \"sources\": {\n\
  \ \"dir\" : \"src\",\n\
  \ \"subdirs\" : true\n\
- \ }\n\
+ \ },\n\
+ \ \"package-specs\": {\n\
+ \ \"module\": \"es6\",\n\
+ \ \"in-source\": true\n\
+ \ },\n\
+ \ \"suffix\": \".bs.js\"\n\
  }\n\
  "
  );
@@ -14410,7 +14415,7 @@ let root = ([
  }"
  );
  Dir("src",[
- File("demo.res",
+ File("Demo.res",
  "\n\
  Js.log(\"Hello, ReScript\")"
  )