Added ktlint and editor config and missing test for non-existing account

.editorconfig

@@ -0,0 +1,18 @@
+root = true
+
+[*]
+indent_style = space
+indent_size = 4
+charset = utf-8
+end_of_line = lf
+insert_final_newline = true
+
+[*.kt]
+max_line_length = 100
+disabled_rules = no-wildcard-imports
+
+[*.{kt,kts}]
+import_order = camelcase, spaces, semicolons
+
+[*.kt]
+ij_kotlin_packages_to_use_import_on_demand = emptyList()

build.gradle.kts

@@ -1,6 +1,7 @@
 plugins {
     kotlin("jvm") version "2.0.20"
     id("io.gitlab.arturbosch.detekt") version("1.23.7")
+    id("org.jlleitschuh.gradle.ktlint") version("12.1.1")
 }
 
 group = "camilyed.github.io"
@@ -21,4 +22,6 @@ tasks.test {
 }
 kotlin {
     jvmToolchain(21)
-}
+}
+
+apply(plugin = "org.jlleitschuh.gradle.ktlint")