appview: move template-specific constants to global funcmap
Constants those are mainly used to define a template shouldn't be
managed from http handlers. Define constant values in `const` funcmap so
we can easily access them without depending on template params.
This change will make more sense with following change `rusppvkn`
Signed-off-by: Seongmin Lee <git@boltless.me>
authored by
tangled.org
fadf2b56
23fa27d4