Fix lint errors introduced in #4146 and #4295 (#4876)

* Ameba: Fix Naming/VariableNames

Introduced in #4295

* Ameba: Fix Naming/PredicateName

Introduced in #4146

src/invidious/channels/about.cr

@@ -50,12 +50,12 @@ def get_about_info(ucid, locale) : AboutChannel
   total_views = 0_i64
   joined = Time.unix(0)
 
-  if ageGate = initdata.dig?("contents", "twoColumnBrowseResultsRenderer", "tabs", 0, "tabRenderer", "content", "sectionListRenderer", "contents", 0, "channelAgeGateRenderer")
+  if age_gate_renderer = initdata.dig?("contents", "twoColumnBrowseResultsRenderer", "tabs", 0, "tabRenderer", "content", "sectionListRenderer", "contents", 0, "channelAgeGateRenderer")
     description_node = nil
-    author = ageGate["channelTitle"].as_s
+    author = age_gate_renderer["channelTitle"].as_s
     ucid = initdata.dig("responseContext", "serviceTrackingParams", 0, "params", 0, "value").as_s
     author_url = "https://www.youtube.com/channel/#{ucid}"
-    author_thumbnail = ageGate.dig("avatar", "thumbnails", 0, "url").as_s
+    author_thumbnail = age_gate_renderer.dig("avatar", "thumbnails", 0, "url").as_s
     banner = nil
     is_family_friendly = false
     is_age_gated = true

src/invidious/routes/search.cr

@@ -53,7 +53,7 @@ module Invidious::Routes::Search
 
       # An URL was copy/pasted in the search box.
       # Redirect the user to the appropriate page.
-      if query.is_url?
+      if query.url?
         return env.redirect UrlSanitizer.process(query.text).to_s
       end
 

src/invidious/search/query.cr

@@ -149,7 +149,7 @@ module Invidious::Search
     end
 
     # Checks if the query is a standalone URL
-    def is_url? : Bool
+    def url? : Bool
       # If the smart features have been inhibited, don't go further.
       return false if @inhibit_ssf