refactor: replace static placeholders with translatable ones (#87130)

* refactor: replace static placeholders with translatable ones

* refactor

* refactor: keep default option

* refactor: improve expression

* refactor: run extraction after merging fix

conf/defaults.ini

@@ -490,8 +490,8 @@ verify_email_enabled = false
 login_default_org_id =
 
 # Background text for the user field on the login page
-login_hint = email or username
-password_hint = password
+login_hint =
+password_hint =
 
 # Default UI theme ("dark" or "light" or "system")
 default_theme = dark
@@ -1850,4 +1850,4 @@ fetch_access_policy_timeout = 5s
 # How long to wait for a request to create to delete an access policy to complete
 delete_access_policy_timeout = 5s
 # The domain name used to access cms
-domain = grafana-dev.net
+domain = grafana-dev.net

public/app/core/components/Login/LoginForm.tsx

@@ -42,7 +42,7 @@ export const LoginForm = ({ children, onSubmit, isLoggingIn, passwordHint, login
             id={usernameId}
             autoFocus
             autoCapitalize="none"
-            placeholder={loginHint}
+            placeholder={loginHint || t('login.form.username-placeholder', 'email or username')}
             data-testid={selectors.pages.Login.username}
           />
         </Field>
@@ -55,7 +55,7 @@ export const LoginForm = ({ children, onSubmit, isLoggingIn, passwordHint, login
             {...register('password', { required: t('login.form.password-required', 'Password is required') })}
             id={passwordId}
             autoComplete="current-password"
-            placeholder={passwordHint}
+            placeholder={passwordHint || t('login.form.password-placeholder', 'password')}
           />
         </Field>
         <Button

public/locales/en-US/grafana.json

@@ -727,10 +727,12 @@
     "forgot-password": "Forgot your password?",
     "form": {
       "password-label": "Password",
+      "password-placeholder": "password",
       "password-required": "Password is required",
       "submit-label": "Log in",
       "submit-loading-label": "Logging in...",
       "username-label": "Email or username",
+      "username-placeholder": "email or username",
       "username-required": "Email or username is required"
     },
     "services": {

public/locales/pseudo-LOCALE/grafana.json

@@ -727,10 +727,12 @@
     "forgot-password": "Főřģőŧ yőūř päşşŵőřđ?",
     "form": {
       "password-label": "Päşşŵőřđ",
+      "password-placeholder": "päşşŵőřđ",
       "password-required": "Päşşŵőřđ įş řęqūįřęđ",
       "submit-label": "Ŀőģ įʼn",
       "submit-loading-label": "Ŀőģģįʼnģ įʼn...",
       "username-label": "Ēmäįľ őř ūşęřʼnämę",
+      "username-placeholder": "ęmäįľ őř ūşęřʼnämę",
       "username-required": "Ēmäįľ őř ūşęřʼnämę įş řęqūįřęđ"
     },
     "services": {