fix: unwanted password show on enter, instead of submit (#225)

Adding type="button" to show password button.

Default type of buttons inside a form is always submit, so enter
triggers it.

front/share/src/Form/FieldContainer.svelte

@@ -118,6 +118,7 @@
       </button> -->
       <button
         class="btn ripple-container"
+        type="button"
         use:ripple
         on:click|preventDefault={() => btn?.action()}
         tabindex={btn.tabindex}

front/share/src/Form/Password.svelte

@@ -16,8 +16,7 @@
   $: btn = {
     action,
     icon: visible ? mdiEyeOff : mdiEye,
-    label: visible ? $locale.hide_password : $locale.show_password,
-    tabindex: -1,
+    label: visible ? $locale.hide_password : $locale.show_password
   }
 
   $: type = visible ? "text" : "password";

front/share/src/Form/TextField.svelte

@@ -9,7 +9,7 @@
   export let maxlength: number | undefined = void 0;
   export let icon: string | null = null;
   export let icon_viewbox: string | undefined = void 0;
-    export let on_change: ((v: string) => void) | null =  null; 
+  export let on_change: ((v: string) => void) | null =  null; 
 
   export let multiline: boolean | undefined = void 0;
   export let minrows: number | undefined = void 0;