Fix restoring the last url at start

The last session url is now remembered for being restored at the beginning of the session. Thanks for the help of @bwindels

src/domain/navigation/URLRouter.js

@@ -27,7 +27,7 @@ export class URLRouter {
     }
 
     _getLastSessionId() {
-        const navPath = this._urlAsNavPath(this._history.getLastUrl() || "");
+        const navPath = this._urlAsNavPath(this._history.getLastSessionUrl() || "");
         const sessionId = navPath.get("session")?.value;
         if (typeof sessionId === "string") {
             return sessionId;
@@ -84,7 +84,7 @@ export class URLRouter {
     }
 
     tryRestoreLastUrl() {
-        const lastNavPath = this._urlAsNavPath(this._history.getLastUrl() || "");
+        const lastNavPath = this._urlAsNavPath(this._history.getLastSessionUrl() || "");
         if (lastNavPath.segments.length !== 0) {
             this._applyNavPathToNavigation(lastNavPath);
             return true;

src/matrix/common.js

@@ -22,16 +22,16 @@ export function makeTxnId() {
 }
 
 export function isTxnId(txnId) {
-	return txnId.startsWith("t") && txnId.length === 15;
+    return txnId.startsWith("t") && txnId.length === 15;
 }
 
 export function tests() {
-	return {
-		"isTxnId succeeds on result of makeTxnId": assert => {
-			assert(isTxnId(makeTxnId()));
-		},
-		"isTxnId fails on event id": assert => {
-			assert(!isTxnId("$yS_n5n3cIO2aTtek0_2ZSlv-7g4YYR2zKrk2mFCW_rm"));
-		},
-	}
+    return {
+        "isTxnId succeeds on result of makeTxnId": assert => {
+            assert(isTxnId(makeTxnId()));
+        },
+        "isTxnId fails on event id": assert => {
+            assert(!isTxnId("$yS_n5n3cIO2aTtek0_2ZSlv-7g4YYR2zKrk2mFCW_rm"));
+        },
+    }
 }

src/platform/web/dom/History.js

@@ -65,6 +65,7 @@ export class History extends BaseObservableValue {
     }
 
     onSubscribeFirst() {
+        this._lastSessionHash = window.localStorage?.getItem("hydrogen_last_url_hash");
         window.addEventListener('hashchange', this);
     }
 
@@ -76,7 +77,7 @@ export class History extends BaseObservableValue {
         window.localStorage?.setItem("hydrogen_last_url_hash", hash);
     }
 
-    getLastUrl() {
-        return window.localStorage?.getItem("hydrogen_last_url_hash");
+    getLastSessionUrl() {
+        return this._lastSessionHash;
     }
 }