add attributes to disable spell check and automatic capitalization to all username input fields

src/views/desktop/LoginPage.vue

@@ -35,6 +35,10 @@
                                         <v-text-field
                                             type="text"
                                             autocomplete="username"
+                                            autocapitalize="none"
+                                            autocorrect="off"
+                                            spellcheck="false"
+                                            inputmode="email"
                                             :autofocus="true"
                                             :disabled="show2faInput || loggingInByPassword || loggingInByOAuth2 || verifying"
                                             :label="tt('Username')"

src/views/desktop/SignupPage.vue

@@ -36,6 +36,10 @@
                                         <v-text-field
                                             type="text"
                                             autocomplete="username"
+                                            autocapitalize="none"
+                                            autocorrect="off"
+                                            spellcheck="false"
+                                            inputmode="email"
                                             :disabled="submitting || navigateToHomePage"
                                             :label="tt('Username')"
                                             :placeholder="tt('Your username')"

src/views/mobile/SignupPage.vue

@@ -12,6 +12,10 @@
             <f7-list-input
                 type="text"
                 autocomplete="username"
+                autocapitalize="none"
+                autocorrect="off"
+                spellcheck="false"
+                inputmode="email"
                 clear-button
                 :label="tt('Username')"
                 :placeholder="tt('Your username')"