Fix a few tiny non-global replace bugs

Not sure if these have had any concrete impact, but I'm pretty confident
they're wrong regardless.

Author: pimterry

src/components/intercept/config/android-device-config.tsx

@@ -62,8 +62,8 @@ const Spacer = styled.div`
 
 function urlSafeBase64(content: string) {
     return Buffer.from(content, 'utf8').toString('base64')
-        .replace('+', '-')
-        .replace('/', '_');
+        .replace(/\+/g, '-')
+        .replace(/\//g, '_');
 }
 
 function getConfigRequestIds(eventsStore: EventsStore) {

src/model/api/openapi.ts

@@ -246,8 +246,8 @@ export function getBodySchema(
 
     const schemaKey = _.find<string>(mediaTypeKeys, (key) =>
         new RegExp('^' + // Must match at the start
-            key.replace('*', '.*') // Wildcards to regex wildcard
-                .replace(/;.*/, '') // Ignore charset etc
+            key.replace(/\*/g, '.*') // Wildcards to regex wildcard
+                .replace(/;.*/g, '') // Ignore charset etc
         ).exec(contentType) !== null
     );