Create own inputs (#46)

* Fix: Re-adding input synchronisation across pages for LA

* Chore: Functionising the filtering of BDS by topic for app inputs, using raw BDS topic indicators to get dupes to appear across topics

* Chore: BDS metrics no longer needed in app inputs mod

* Feat: Converting Create Your Own inputs to not use topic to filter the BDS, in order to sort URL bookmarking

* Chore: Filtering out the discontinued indicators at the point the data dict is loaded in

* Feat: For duplicate indicators across topics, combining the topic names in BDS (mainly for Create Your Own table)

* Feat: Applying the decoipling of topic column to Create Own table (thus charts), had to update get x-axis fn to deal with multiple labels

* Feat: Functionising the dynamic topic label, though leaving out of Create Your Own for now as could have too many topics in label

* Chore: Roxgyen comments for dynamic topic label fn

* Feat: Updating sever script for new Create Your Own inputs param and removing the topic input from bookmarking

* Tests: Updating test fn to remove bds_metrics (no longer needed)

* Style: Linting indent corrections

* Fix: Topic filtering for dynamic label needs an any() wrapped around the check if topic input is all or empty

* Fix: Sorted out bookmarking and input initialisation so that they appear as expected when load into URL