Oauth 2 Flow UI (#1440)

* adjust existing sign-in flow

* test fetching of oauth client

* allow for apiversion override

* getAuthUrl refactor

* Adjust auth to accept complex url redirections

* introduce scopes

* accept oauth flow

* rename login/oauth to authorize

* conform to labrinth spec and oauth2 spec

* use cute icons for scope items

* applications pages

* Modal for copy client secret on creation

* rip out old state

* add authorizations

* add flow error state and implement feedback

* implement error notifications on error

* Client secret modal flow aligned with PAT copy

* Authorized scopes now aligned with Authorize screen

* Fix spelling and capitalization

* change redirect uris to include the input field

* refactor 2fa flow to be more stable

* visual adjustments for authorizations

* Fix empty field submission bug

* Add file upload for application icon

* Change shape of editing/create application

* replace icon with Avatar component

* Refactor authorization card styling

* UI feedback

* clean up spacing, styling

* Create a "Developer" section of user settings

* Fix spacing and scope access

* app description and url implementations

* clean up imports

* Update authorization endpoint

* Update placeholder URL in applications.vue

* Remove app information from authorization page

* Remove max scopes from application settings

* Fix import statement and update label styles

* Replace useless headers

* Update pages/auth/authorize.vue

Co-authored-by: Calum H. <contact@mineblock11.dev>

* Update pages/auth/authorize.vue

Co-authored-by: Calum H. <contact@mineblock11.dev>

* Finish PR

---------

Co-authored-by: Calum H. <contact@mineblock11.dev>
Co-authored-by: Jai A <jaiagr+gpg@pm.me>

pages/settings/account.vue

@@ -264,7 +264,11 @@
               >
                 <TrashIcon /> Remove
               </button>
-              <a v-else class="btn" :href="`${getAuthUrl(provider.id)}&token=${auth.token}`">
+              <a
+                v-else
+                class="btn"
+                :href="`${getAuthUrl(provider.id, '/settings/account')}&token=${auth.token}`"
+              >
                 <ExternalIcon /> Add
               </a>
             </div>