spelling: strings (#19542)

Co-authored-by: Josh Soref <jsoref@users.noreply.github.com>
Co-authored-by: Mattermod <mattermod@users.noreply.github.com>

model/utils_test.go

@@ -107,7 +107,7 @@ func TestMapJson(t *testing.T) {
 	require.Equal(t, rm["id"], "test_id", "map should be valid")
 
 	rm2 := MapFromJSON(strings.NewReader(""))
-	require.LessOrEqual(t, len(rm2), 0, "make should be ivalid")
+	require.LessOrEqual(t, len(rm2), 0, "make should be invalid")
 }
 
 func TestIsValidEmail(t *testing.T) {
@@ -213,7 +213,7 @@ var hashtags = map[string]string{
 	"#?test":          "",
 	"#-test":          "",
 	"#yo_yo":          "#yo_yo",
-	"(#brakets)":      "#brakets",
+	"(#brackets)":     "#brackets",
 	")#stekarb(":      "#stekarb",
 	"<#less_than<":    "#less_than",
 	">#greater_than>": "#greater_than",
@@ -885,7 +885,7 @@ func TestIsValidHTTPURL(t *testing.T) {
 		},
 		{
 			"url with invalid scheme",
-			"htp://mattermost.com",
+			"http-bad://mattermost.com",
 			false,
 		},
 		{
@@ -905,7 +905,7 @@ func TestIsValidHTTPURL(t *testing.T) {
 		},
 		{
 			"correct url with http scheme",
-			"http://mattemost.com",
+			"http://mattermost.com",
 			true,
 		},
 		{