referrals: 1/2 generation routes, display route, partial frontend

route for generation/enabling of referral for user(s) done? the frontend
is mostly done, but functionality is not there yet. Route for finding
and displaying referral to user is done. Also the config option for
referral is there, in user page settings.

storage.go

@@ -429,15 +429,16 @@ type DiscordUser struct {
 	Discriminator string
 	Lang          string
 	Contact       bool
-	JellyfinID    string `json:"-" badgerhold:"key"` // Used internally in discord.go
+	JellyfinID    string `json:"-" badgerhold:"key"`
 }
 
 type EmailAddress struct {
-	Addr       string `badgerhold:"index"`
-	Label      string // User Label.
-	Contact    bool
-	Admin      bool   // Whether or not user is jfa-go admin.
-	JellyfinID string `badgerhold:"key"`
+	Addr                string `badgerhold:"index"`
+	Label               string // User Label.
+	Contact             bool
+	Admin               bool   // Whether or not user is jfa-go admin.
+	JellyfinID          string `badgerhold:"key"`
+	ReferralTemplateKey string
 }
 
 type customEmails struct {
@@ -470,16 +471,17 @@ type userPageContent struct {
 // timePattern: %Y-%m-%dT%H:%M:%S.%f
 
 type Profile struct {
-	Name          string                     `badgerhold:"key"`
-	Admin         bool                       `json:"admin,omitempty" badgerhold:"index"`
-	LibraryAccess string                     `json:"libraries,omitempty"`
-	FromUser      string                     `json:"fromUser,omitempty"`
-	Homescreen    bool                       `json:"homescreen"`
-	Policy        mediabrowser.Policy        `json:"policy,omitempty"`
-	Configuration mediabrowser.Configuration `json:"configuration,omitempty"`
-	Displayprefs  map[string]interface{}     `json:"displayprefs,omitempty"`
-	Default       bool                       `json:"default,omitempty"`
-	Ombi          map[string]interface{}     `json:"ombi,omitempty"`
+	Name                string                     `badgerhold:"key"`
+	Admin               bool                       `json:"admin,omitempty" badgerhold:"index"`
+	LibraryAccess       string                     `json:"libraries,omitempty"`
+	FromUser            string                     `json:"fromUser,omitempty"`
+	Homescreen          bool                       `json:"homescreen"`
+	Policy              mediabrowser.Policy        `json:"policy,omitempty"`
+	Configuration       mediabrowser.Configuration `json:"configuration,omitempty"`
+	Displayprefs        map[string]interface{}     `json:"displayprefs,omitempty"`
+	Default             bool                       `json:"default,omitempty"`
+	Ombi                map[string]interface{}     `json:"ombi,omitempty"`
+	ReferralTemplateKey string
 }
 
 type Invite struct {
@@ -495,11 +497,14 @@ type Invite struct {
 	UserMinutes   int       `json:"user-minutes,omitempty"`
 	SendTo        string    `json:"email"`
 	// Used to be stored as formatted time, now as Unix.
-	UsedBy   [][]string                 `json:"used-by"`
-	Notify   map[string]map[string]bool `json:"notify"`
-	Profile  string                     `json:"profile"`
-	Label    string                     `json:"label,omitempty"`
-	Captchas map[string]*captcha.Data   // Map of Captcha IDs to answers
+	UsedBy                     [][]string                 `json:"used-by"`
+	Notify                     map[string]map[string]bool `json:"notify"`
+	Profile                    string                     `json:"profile"`
+	Label                      string                     `json:"label,omitempty"`
+	Captchas                   map[string]*captcha.Data   // Map of Captcha IDs to answers
+	IsReferral                 bool                       `json:"is_referral" badgerhold:"index"`
+	ReferrerJellyfinID         string                     `json:"referrer_id"`
+	ReferrerTemplateForProfile string
 }
 
 type Lang struct {