Live location sharing: set map bounds to include all locations (#8324)

* open a dialog with map centered around first beacon

Signed-off-by: Kerry Archibald <kerrya@element.io>

* test dialog opening from beacon body

Signed-off-by: Kerry Archibald <kerrya@element.io>

* test beaconmarker

Signed-off-by: Kerry Archibald <kerrya@element.io>

* add bounds to Map comp

Signed-off-by: Kerry Archibald <kerrya@element.io>

* add focusBeacon to beaconviewdialog, use bounds

Signed-off-by: Kerry Archibald <kerrya@element.io>

* lint

Signed-off-by: Kerry Archibald <kerrya@element.io>

* use membercolor on beacon view markers

Signed-off-by: Kerry Archibald <kerrya@element.io>

* add lnglatbounds to maplibre mock

Signed-off-by: Kerry Archibald <kerrya@element.io>

* update snapshots for expanded maplibre Map mock

Signed-off-by: Kerry Archibald <kerrya@element.io>

* test map bounds

Signed-off-by: Kerry Archibald <kerrya@element.io>

* tidy copy paste comment

Signed-off-by: Kerry Archibald <kerrya@element.io>

* add fallback when no more live locations

Signed-off-by: Kerry Archibald <kerrya@element.io>

* accurate signature for getBoundsCenter

Signed-off-by: Kerry Archibald <kerrya@element.io>

src/i18n/strings/en_EN.json

@@ -2915,6 +2915,7 @@
     "Loading live location...": "Loading live location...",
     "Live location ended": "Live location ended",
     "Live location error": "Live location error",
+    "No live locations": "No live locations",
     "An error occured whilst sharing your live location": "An error occured whilst sharing your live location",
     "You are sharing your live location": "You are sharing your live location",
     "%(timeRemaining)s left": "%(timeRemaining)s left",