Add login template

internal/templates/login.html

@@ -0,0 +1,44 @@
+{{define "content"}}
+  <article class="grid">
+    <div>
+      <hgroup>
+        <h2>Sign in</h2>
+        <p>Login to your Spyda account on {{ .InstanceName }}</p>
+      </hgroup>
+      <form action="/login" method="POST">
+        <input type="hidden" name="csrf_token" value="{{ $.CSRFToken }}">
+        <input type="text" name="username" placeholder="Username" aria-label="Username" autocomplete="nickname" autofocus required>
+        <input type="password" name="password" placeholder="Password" aria-label="Password" autocomplete="current-password" required>
+        <fieldset>
+          <label for="rememberme">
+            <input type="checkbox" id="rememberme" name="rememberme">
+            Remember me?
+          </label>
+        </fieldset>
+        <button type="submit" class="contrast">Login</button>
+        <p>
+          <a href="/resetPassword">Forgotten your password?</a>
+        </p>
+      </form>
+    </div>
+    <div>
+      <hgroup>
+        <h2>How to login to your account</h2>
+      </hgroup>
+      <p>
+        Login to your Spyda account on {{ .InstanceName }} by filling in
+        the Username and Password you used when you created your account.
+      </p>
+      <p>
+        Check the "Remember Me" box if you don't want to have to keep logging in
+        every few hours.
+      </p>
+      <p>
+        If you have forgotten your password you can request a
+        <a href="/resetPassword">Password Reset</a> as long as you remember
+        your username and email address you signed up with and retain access to
+        your email (<i>We <b>NEVER</b> store your email address!</i>).
+      </p>
+    </div>
+  </article>
+{{end}}