[feature] About page (#1495)

* about page basics

* more info, styling

* update emoji sizing on about page contact card

internal/web/about.go

@@ -0,0 +1,50 @@
+/*
+   GoToSocial
+   Copyright (C) 2021-2023 GoToSocial Authors admin@gotosocial.org
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU Affero General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU Affero General Public License for more details.
+
+   You should have received a copy of the GNU Affero General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+package web
+
+import (
+	"net/http"
+
+	"github.com/gin-gonic/gin"
+	apiutil "github.com/superseriousbusiness/gotosocial/internal/api/util"
+	"github.com/superseriousbusiness/gotosocial/internal/config"
+	"github.com/superseriousbusiness/gotosocial/internal/gtserror"
+)
+
+const (
+	aboutPath = "/about"
+)
+
+func (m *Module) aboutGETHandler(c *gin.Context) {
+	instance, err := m.processor.InstanceGetV1(c.Request.Context())
+	if err != nil {
+		apiutil.ErrorHandler(c, gtserror.NewErrorInternalError(err), m.processor.InstanceGetV1)
+		return
+	}
+
+	c.HTML(http.StatusOK, "about.tmpl", gin.H{
+		"instance":         instance,
+		"ogMeta":           ogBase(instance),
+		"blocklistExposed": config.GetInstanceExposeSuspendedWeb(),
+		"stylesheets": []string{
+			assetsPathPrefix + "/Fork-Awesome/css/fork-awesome.min.css",
+		},
+		"javascript": []string{distPathPrefix + "/frontend.js"},
+	})
+}