Add signin view, fix linting

src/components/Login.vue

@@ -0,0 +1,52 @@
+<template>
+  <v-form v-model="valid">
+    <v-container>
+      <v-col cols="12" class="mb-4">
+        <h1 class="display-2 font-weight-bold mb-3">
+          Login
+        </h1>
+      </v-col>
+
+      <v-col
+        cols="12"
+        md="4"
+      >
+        <v-text-field
+          v-model="username"
+          :rules="usernameRules"
+          label="Username"
+          required
+        />
+      </v-col>
+
+      <v-col
+        cols="12"
+        md="4"
+      >
+        <v-text-field
+          v-model="password"
+          type="password"
+          :rules="passwordRules"
+          label="Password"
+          required
+        />
+      </v-col>
+    </v-container>
+  </v-form>
+</template>
+
+<script>
+export default {
+  data: () => ({
+    valid: false,
+    username: '',
+    password: '',
+    usernameRules: [
+      v => !!v || 'Username is required'
+    ],
+    passwordRules: [
+      v => !!v || 'Password is required'
+    ]
+  })
+}
+</script>