Fix intent filters (#247)

* Moved showNextButton to viewmodel

Signed-off-by: Arnau Mora Gras <arnyminerz@proton.me>

* Streamlined state updates

Signed-off-by: Arnau Mora Gras <arnyminerz@proton.me>

* Added `content` scheme

Signed-off-by: Arnau Mora Gras <arnyminerz@proton.me>

* Moved intent processor to Compose pipeline

Signed-off-by: Arnau Mora Gras <arnyminerz@proton.me>

* Got rid of path-based intent filter

Signed-off-by: Arnau Mora Gras <arnyminerz@proton.me>

* Added receivers for sharing

Signed-off-by: Arnau Mora Gras <arnyminerz@proton.me>

* Fixed URL extraction

Signed-off-by: Arnau Mora Gras <arnyminerz@proton.me>

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Signed-off-by: Arnau Mora Gras <arnyminerz@proton.me>