refactor: Move top level constants to it's own modules

src/invidious.cr

@@ -67,20 +67,9 @@ rescue ex
   puts "Check your 'config.yml' database settings or PostgreSQL settings."
   exit(1)
 end
-ARCHIVE_URL = URI.parse("https://archive.org")
-PUBSUB_URL  = URI.parse("https://pubsubhubbub.appspot.com")
-REDDIT_URL  = URI.parse("https://www.reddit.com")
-YT_URL      = URI.parse("https://www.youtube.com")
-HOST_URL    = make_host_url(Kemal.config)
-
-CHARS_SAFE         = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_"
-TEST_IDS           = {"AgbeGFYluEA", "BaW_jenozKc", "a9LDPn-MO4I", "ddFvjfvPnqk", "iqKdEhx-dD4"}
+HOST_URL           = make_host_url(Kemal.config)
 MAX_ITEMS_PER_PAGE = 1500
 
-REQUEST_HEADERS_WHITELIST  = {"accept", "accept-encoding", "cache-control", "content-length", "if-none-match", "range"}
-RESPONSE_HEADERS_BLACKLIST = {"access-control-allow-origin", "alt-svc", "server", "cross-origin-opener-policy-report-only", "report-to", "cross-origin", "timing-allow-origin", "cross-origin-resource-policy"}
-HTTP_CHUNK_SIZE            = 10485760 # ~10MB
-
 CURRENT_BRANCH  = {{ "#{`git branch | sed -n '/* /s///p'`.strip}" }}
 CURRENT_COMMIT  = {{ "#{`git rev-list HEAD --max-count=1 --abbrev-commit`.strip}" }}
 CURRENT_VERSION = {{ "#{`git log -1 --format=%ci | awk '{print $1}' | sed s/-/./g`.strip}" }}
@@ -97,7 +86,7 @@ SOFTWARE = {
   "branch"  => "#{CURRENT_BRANCH}",
 }
 
-YT_POOL = YoutubeConnectionPool.new(YT_URL, capacity: CONFIG.pool_size)
+YT_POOL = YoutubeConnectionPool.new(URI.parse("https://www.youtube.com"), capacity: CONFIG.pool_size)
 
 # Image request pool