Prettier 2: Electric Boogaloo (#6113)

# Description of Changes
When I added Prettier formatting in #6052, my aim was to use just the
default settings in Prettier. Turns out, Prettier looks _really hard_
for any config files if it's not explicitly given one, which means that
if a developer has some sort of Prettier config file lying around on
their system, Prettier might find it and use it. Also, Prettier changes
its defaults based on stuff in `.editorconfig` without any good way of
disabling that behaviour explicitly in its config file.

To solve both of these issues, I've introduced a `.prettierrc` file
which sets Prettier's defaults explicitly, and then reformatted all our
code _again_ in Prettier's actual default settings. This should achieve
the aim of #6052 and remove the possibility for it breaking on different
dev computers.

frontend/src/core/components/onboarding/onboardingFlowConfig.ts

@@ -20,7 +20,14 @@ export type SlideId =
   | "analytics-choice"
   | "mfa-setup";
 
-export type HeroType = "rocket" | "dual-icon" | "shield" | "diamond" | "logo" | "lock" | "analytics";
+export type HeroType =
+  | "rocket"
+  | "dual-icon"
+  | "shield"
+  | "diamond"
+  | "logo"
+  | "lock"
+  | "analytics";
 
 export type ButtonAction =
   | "next"
@@ -91,7 +98,11 @@ export interface SlideDefinition {
 export const SLIDE_DEFINITIONS: Record<SlideId, SlideDefinition> = {
   "first-login": {
     id: "first-login",
-    createSlide: ({ firstLoginUsername, onPasswordChanged, usingDefaultCredentials }) =>
+    createSlide: ({
+      firstLoginUsername,
+      onPasswordChanged,
+      usingDefaultCredentials,
+    }) =>
       FirstLoginSlide({
         username: firstLoginUsername || "",
         onPasswordChanged: onPasswordChanged || (() => {}),
@@ -148,7 +159,8 @@ export const SLIDE_DEFINITIONS: Record<SlideId, SlideDefinition> = {
   },
   "security-check": {
     id: "security-check",
-    createSlide: ({ selectedRole, onRoleSelect }) => SecurityCheckSlide({ selectedRole, onRoleSelect }),
+    createSlide: ({ selectedRole, onRoleSelect }) =>
+      SecurityCheckSlide({ selectedRole, onRoleSelect }),
     hero: { type: "shield" },
     buttons: [
       {
@@ -172,7 +184,8 @@ export const SLIDE_DEFINITIONS: Record<SlideId, SlideDefinition> = {
   },
   "admin-overview": {
     id: "admin-overview",
-    createSlide: ({ licenseNotice, loginEnabled }) => PlanOverviewSlide({ isAdmin: true, licenseNotice, loginEnabled }),
+    createSlide: ({ licenseNotice, loginEnabled }) =>
+      PlanOverviewSlide({ isAdmin: true, licenseNotice, loginEnabled }),
     hero: { type: "diamond" },
     buttons: [
       {
@@ -262,7 +275,8 @@ export const SLIDE_DEFINITIONS: Record<SlideId, SlideDefinition> = {
   },
   "analytics-choice": {
     id: "analytics-choice",
-    createSlide: ({ analyticsError }) => AnalyticsChoiceSlide({ analyticsError }),
+    createSlide: ({ analyticsError }) =>
+      AnalyticsChoiceSlide({ analyticsError }),
     hero: { type: "analytics" },
     buttons: [
       {
@@ -285,7 +299,8 @@ export const SLIDE_DEFINITIONS: Record<SlideId, SlideDefinition> = {
   },
   "mfa-setup": {
     id: "mfa-setup",
-    createSlide: ({ onMfaSetupComplete = () => {} }: SlideFactoryParams) => MFASetupSlide({ onMfaSetupComplete }),
+    createSlide: ({ onMfaSetupComplete = () => {} }: SlideFactoryParams) =>
+      MFASetupSlide({ onMfaSetupComplete }),
     hero: { type: "lock" },
     buttons: [], // Form has its own submit button
   },