fix: strip trailing slash from couchDB_URI to avoid double-slash 401

When couchDB_URI ends with a trailing slash (e.g. https://host/), the
database name concatenation produces a double-slash path
(https://host//obsidiannotes), which causes CouchDB to reject requests
with 401 "Name or password is incorrect".

Strip trailing slashes from couchDB_URI / baseUri at the path
concatenation sites in:
- src/common/utils.ts (_requestToCouchDBFetch, _requestToCouchDB)
- src/features/LocalDatabaseMainte/CmdLocalDatabaseMainte.ts

The companion fix for the replication path is in the livesync-commonlib
submodule.

Ref: #859

src/common/utils.ts

@@ -138,7 +138,7 @@ export const _requestToCouchDBFetch = async (
         authorization: authHeader,
         "content-type": "application/json",
     };
-    const uri = `${baseUri}/${path}`;
+    const uri = `${baseUri.replace(/\/+$/, "")}/${path}`;
     const requestParam = {
         url: uri,
         method: method || (body ? "PUT" : "GET"),
@@ -162,7 +162,7 @@ export const _requestToCouchDB = async (
     const authHeaderGen = new AuthorizationHeaderGenerator();
     const authHeader = await authHeaderGen.getAuthorizationHeader(credentials);
     const transformedHeaders: Record<string, string> = { authorization: authHeader, origin: origin, ...customHeaders };
-    const uri = `${baseUri}/${path}`;
+    const uri = `${baseUri.replace(/\/+$/, "")}/${path}`;
     const requestParam: RequestUrlParam = {
         url: uri,
         method: method || (body ? "PUT" : "GET"),