[TOOL-2891] Fix Team dashboard not loading if team slug contains special characters (#5867)

## Problem solved

Short description of the bug fixed or feature added

<!-- start pr-codex -->

---

## PR-Codex overview
This PR focuses on improving the handling of `team_slug` and validating the `teamSlug` input in the settings UI. It enhances the URL decoding process and adds error handling for invalid team URLs.

### Detailed summary
- Updated `team_slug` retrieval to decode the URL component in `layout.tsx`.
- Modified project retrieval logic to decode `team_slug`.
- Replaced `isTeamTaken` state with `errorMessage` state for better error handling.
- Added validation for `teamSlug` input to check for empty values and invalid characters.

> ✨ Ask PR-Codex anything about this PR by commenting with `/codex {your question}`

<!-- end pr-codex -->

Author: MananTank

apps/dashboard/src/app/team/[team_slug]/(team)/layout.tsx

@@ -20,7 +20,9 @@ export default async function TeamLayout(props: {
     redirect("/login");
   }
 
-  const team = teams.find((t) => t.slug === params.team_slug);
+  const team = teams.find(
+    (t) => t.slug === decodeURIComponent(params.team_slug),
+  );
   const teamsAndProjects = await Promise.all(
     teams.map(async (team) => ({
       team,

apps/dashboard/src/app/team/[team_slug]/(team)/~/settings/general/TeamGeneralSettingsPageUI.tsx

@@ -97,8 +97,8 @@ function TeamSlugFormControl(props: {
   updateTeamField: (team: Partial<Team>) => Promise<void>;
 }) {
   const [teamSlug, setTeamSlug] = useState(props.team.slug);
-  const [isTeamTaken] = useState(false);
   const maxTeamURLLength = 48;
+  const [errorMessage, setErrorMessage] = useState<string | undefined>();
 
   const updateTeamMutation = useMutation({
     mutationFn: (slug: string) => props.updateTeamField({ slug: slug }),
@@ -120,14 +120,10 @@ function TeamSlugFormControl(props: {
           "This is your team's URL namespace on thirdweb. All your team's projects and settings can be accessed using this URL",
       }}
       bottomText={`Please use ${maxTeamURLLength} characters at maximum.`}
-      errorText={
-        isTeamTaken
-          ? "Team URL is taken, Please choose another one."
-          : undefined
-      }
+      errorText={errorMessage}
       saveButton={{
         onClick: handleSave,
-        disabled: teamSlug.length === 0,
+        disabled: errorMessage !== undefined,
         isPending: updateTeamMutation.isPending,
       }}
       noPermissionText={undefined} // TODO
@@ -139,7 +135,17 @@ function TeamSlugFormControl(props: {
         <Input
           value={teamSlug}
           onChange={(e) => {
-            setTeamSlug(e.target.value.slice(0, maxTeamURLLength));
+            const value = e.target.value.slice(0, maxTeamURLLength);
+            setTeamSlug(value);
+            if (value.trim().length === 0) {
+              setErrorMessage("Team URL can not be empty");
+            } else if (/[^a-zA-Z0-9-]/.test(value)) {
+              setErrorMessage(
+                "Invalid Team URL. Only letters, numbers and hyphens are allowed",
+              );
+            } else {
+              setErrorMessage(undefined);
+            }
           }}
           className="truncate border-0 font-mono"
         />

apps/dashboard/src/app/team/[team_slug]/[project_slug]/layout.tsx

@@ -20,7 +20,9 @@ export default async function TeamLayout(props: {
     redirect("/login");
   }
 
-  const team = teams.find((t) => t.slug === params.team_slug);
+  const team = teams.find(
+    (t) => t.slug === decodeURIComponent(params.team_slug),
+  );
 
   if (!team) {
     // not a valid team, redirect back to 404
@@ -35,7 +37,7 @@ export default async function TeamLayout(props: {
   );
 
   const project = teamsAndProjects
-    .find((t) => t.team.slug === params.team_slug)
+    .find((t) => t.team.slug === decodeURIComponent(params.team_slug))
     ?.projects.find((p) => p.slug === params.project_slug);
 
   if (!project) {