feat: add ada icon, use c colours for ada icons (#577)

* Sensible icons for ADA files

* Keep ADA icons plus add ada extension

* Add ada to filetypes table

Author: dsaenztagarro

lua/nvim-web-devicons/default/icons_by_file_extension.lua

@@ -6,8 +6,9 @@ return {
   ["R"]             = { icon = "󰟔", color = "#2266BA", cterm_color = "25",  name = "R"                          },
   ["a"]             = { icon = "", color = "#DCDDD6", cterm_color = "253", name = "StaticLibraryArchive"       },
   ["aac"]           = { icon = "", color = "#00AFFF", cterm_color = "39",  name = "AdvancedAudioCoding"        },
-  ["adb"]           = { icon = "", color = "#22FFFF", cterm_color = "51",  name = "AdaBody"                    },
-  ["ads"]           = { icon = "", color = "#FFFFFF", cterm_color = "231", name = "AdaSpecification"           },
+  ["ada"]           = { icon = "", color = "#599EFF", cterm_color = "111", name = "AdaFile"                    },
+  ["adb"]           = { icon = "", color = "#599EFF", cterm_color = "111", name = "AdaBody"                    },
+  ["ads"]           = { icon = "", color = "#A074C4", cterm_color = "140", name = "AdaSpecification"           },
   ["ai"]            = { icon = "", color = "#CBCB41", cterm_color = "185", name = "Ai"                         },
   ["aif"]           = { icon = "", color = "#00AFFF", cterm_color = "39",  name = "AudioInterchangeFileFormat" },
   ["aiff"]          = { icon = "", color = "#00AFFF", cterm_color = "39",  name = "AudioInterchangeFileFormat" },
@@ -157,7 +158,7 @@ return {
   ["gnumakefile"]   = { icon = "", color = "#6D8086", cterm_color = "66",  name = "Makefile"                   },
   ["go"]            = { icon = "", color = "#519ABA", cterm_color = "74",  name = "Go"                         },
   ["godot"]         = { icon = "", color = "#6D8086", cterm_color = "66",  name = "GodotProject"               },
-  ["gpr"]           = { icon = "", color = "#FF33FF", cterm_color = "201", name = "GPRBuildProject"            },
+  ["gpr"]           = { icon = "", color = "#6D8086", cterm_color = "66",  name = "GPRBuildProject"            },
   ["gql"]           = { icon = "", color = "#E535AB", cterm_color = "199", name = "GraphQL"                    },
   ["gradle"]        = { icon = "", color = "#005F87", cterm_color = "24",  name = "Gradle"                     },
   ["graphql"]       = { icon = "", color = "#E535AB", cterm_color = "199", name = "GraphQL"                    },

lua/nvim-web-devicons/filetypes.lua

@@ -1,6 +1,7 @@
 ---Maps filetypes to icon names
 ---@type table<string, iconName>
 return {
+  ["ada"] = "ada",
   ["apl"] = "apl",
   ["asm"] = "asm",
   ["astro"] = "astro",