MM-21898 - Part 1: Generate and use an interface instead of *A… (#13840)

* Generate and use an interface instead of *App

web/unsupported_browser.go

@@ -44,7 +44,7 @@ type SystemBrowser struct {
 	MakeDefaultString      string
 }
 
-func renderUnsupportedBrowser(app *app.App, w http.ResponseWriter, r *http.Request) {
+func renderUnsupportedBrowser(app app.AppIface, w http.ResponseWriter, r *http.Request) {
 	w.Header().Set("Cache-Control", "no-store")
 	page := utils.NewHTMLTemplate(app.HTMLTemplates(), "unsupported_browser")
 
@@ -88,7 +88,7 @@ func renderUnsupportedBrowser(app *app.App, w http.ResponseWriter, r *http.Reque
 	page.RenderToWriter(w)
 }
 
-func renderMattermostAppMac(app *app.App) MattermostApp {
+func renderMattermostAppMac(app app.AppIface) MattermostApp {
 	return MattermostApp{
 		"/static/images/browser-icons/mac.png",
 		app.T("web.error.unsupported_browser.download_the_app"),
@@ -100,7 +100,7 @@ func renderMattermostAppMac(app *app.App) MattermostApp {
 	}
 }
 
-func renderMattermostAppWindows(app *app.App) MattermostApp {
+func renderMattermostAppWindows(app app.AppIface) MattermostApp {
 	return MattermostApp{
 		"/static/images/browser-icons/windows.svg",
 		app.T("web.error.unsupported_browser.download_the_app"),
@@ -112,7 +112,7 @@ func renderMattermostAppWindows(app *app.App) MattermostApp {
 	}
 }
 
-func renderBrowserChrome(app *app.App) Browser {
+func renderBrowserChrome(app app.AppIface) Browser {
 	return Browser{
 		"/static/images/browser-icons/chrome.svg",
 		app.T("web.error.unsupported_browser.browser_title.chrome"),
@@ -122,7 +122,7 @@ func renderBrowserChrome(app *app.App) Browser {
 	}
 }
 
-func renderBrowserFirefox(app *app.App) Browser {
+func renderBrowserFirefox(app app.AppIface) Browser {
 	return Browser{
 		"/static/images/browser-icons/firefox.svg",
 		app.T("web.error.unsupported_browser.browser_title.firefox"),
@@ -132,7 +132,7 @@ func renderBrowserFirefox(app *app.App) Browser {
 	}
 }
 
-func renderBrowserSafari(app *app.App) Browser {
+func renderBrowserSafari(app app.AppIface) Browser {
 	return Browser{
 		"/static/images/browser-icons/safari.svg",
 		app.T("web.error.unsupported_browser.browser_title.safari"),
@@ -142,7 +142,7 @@ func renderBrowserSafari(app *app.App) Browser {
 	}
 }
 
-func renderSystemBrowserEdge(app *app.App, r *http.Request) SystemBrowser {
+func renderSystemBrowserEdge(app app.AppIface, r *http.Request) SystemBrowser {
 	return SystemBrowser{
 		"/static/images/browser-icons/edge.svg",
 		app.T("web.error.unsupported_browser.browser_title.edge"),